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Karugamo 「かるがも」 (1992) by Harumi Matsuki, Sendai Airport Office Microcomputer Club. Karugamo came 3rd in the 13th All Japan Micromouse Competition in 1992 with a time of 12.53 seconds.

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Mars 1 (1990) by Andrew Cattell. Mars 1 competed in the 1990 UK IEE Micromouse competition in London, and again in 1992 where "Derek Hall’s Motor Mouse 2 managed a good best run but picked up some penalty points as did Andrew Cattell’s Mars 1." – UKMARS

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Number 2 (1984) by Eiichiro Morinaga. Number 2 competed in the "1984 5th All Japan Micromouse Competition. … Unfortunately, he had to retire. The design was based on an octagon. This is the mouse that I put all my effort into when I was in college. … The CPU is a Z8000, using wire-wrap. When you turn on the power, the two LEDs in the centre light up like the beat of the heart. … The motor is a stepper motor I found at a junk shop. The motor alone weighed about 600g." – Eiichiro Morinaga.

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NORIKO FINAL (1996) by Yu Itani, Japan. Sadly, this is all that remains of Noriko Final, a 5-wheeled, DC motor driven micromouse. It was the winner of the 17th All Japan Micromouse Competition in 1996 with a time of 12.74 seconds. The caption for the photo above reads, "The current appearance of NORIKO-FINAL."

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Ssing Ssing 3 (1995) by Lee Joo-ho, Kim Byung-soo, Korea University. Ssing Ssing 3 was the winner of the 16th All Japan Micromouse competition in 1995, with a time of 15.44 seconds. It has a 2-wheel stepper motor design.

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NORIKO-93 (1993) by Yu Itani, JMMC, Japan. NORIKO-93 won the 14th All Japan Micromouse Competition in 1993, with a time of 9.95 seconds, sticking with the 6-wheel DC motor design of its predecessor. "This is NORIKO-93, which won the 1993 tournament. … NORIKO-93 was ranked the best mouse until the Tohoku tournament two years ago … The drive unit is neatly organised, and the steering motor and battery are attached to the underside of the chassis to reduce drag. Also, the active-crank arm suspension that was used previously seems to have been used again this year. This shape and design is probably the perfect form for a six-wheeled mouse. It was overwhelmingly fast." – Micro Mouse 2003

The video of Yu Itani with NORIKO-93 is from Moringa's Micro Mouse Workshop.

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NORIKO-92 (1992) by Yu Itani, JMMC, Japan. NORIKO-92 won the 13th All Japan Micromouse Competition in 1992, with a time of 9.78 seconds. Its goes further than its predecessors by introducing a 6-wheel DC motor design.

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NORIKO-91 (1991) by Yu Itani, JMMC, Japan. NORIKO-91 won the 12th All Japan Micromouse Competition in 1991, with a time of 10.81 seconds. It uses a new 4-wheel (or is it 6-wheels?) DC motor design with fore and aft wheels doubled up, steering as a pair. "Today, I'm showing you the NORIKO-91, which won the 1991 competition. … According to Itani-san, the changes were based on the NORIKO-XX1, with the sensor on the side, the steering motor becoming DC, and the drive motor remaining the stepper. From the side, as you can see, the tires are basically arranged in a diamond shape like the NORIKO-XX1." – Micro Mouse 2003

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NORIKO-89 (1989) by Yu Itani, Japan. NORIKO-89 won the 10th All Japan Micromouse Competition in 1989 with a time of 12.47 seconds. Like its predecessor, NORIKO-XX1, it has 4 wheels arranged in a diamond. The drive motors are steppers and the steering motor is DC.

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Karugamo II or "Duck" 「かるがも」 (1989) by the Sendai Airport Office Microcomputer Club. Karugamo II won the Namco Prize at the 10th All Japan Micromouse Contest in 1989, an award presented for mice deserving of special recognition. It also achieved 6th place with a time of 18.31 seconds.

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MITEE 9 (2004) by David Otten, MIT. MITEE Mouse 9 is four-wheeled DC motor driven micromouse (apparently sharing a main board with MITEE 7). The annual APEC Micromouse Contest was held at the 2006 Applied Power Electronics Conference (APEC 2006) in Dallas, Texas. One "US entry was MITEE Mouse 9 built by David Otten of MIT. … In the Open Category, Nanyang Polytechnic's BR4 came in first with a time of 7.48 seconds, beating MITEE Mouse 9 (21.75 seconds) and Dover-2 (23.61 seconds)." – Micromouse Contest 2006, by Steven Rainwater, Servo Magazine, May 2006.

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MITEE 8 (1995), by David Otten, MIT. MITEE Mouse 8 came 2nd in the 16th All Japan Micromouse Competition in 1995, losing to Ssing Ssing 3. The video is an excerpt from "UK Micromouse 1998."

"One of the fastest micromice, MITEE 8 by David Otten of MIT, contains two DC motors with encoders, six 225mAh NiCd rechargeables and weights about 200 grams. Side sensors consist of infrared emitter and a PSD sensor, whose output is proportional to the distance independent of reflectivity of the surface." – A Survey of Robotic Competitions, by Richard Balogh.

"Triangulation sensors [were] pioneered by David Otten. These sensors consist of a narrow beam emitter coupled with a Position Sensitive Detector (PSD) which has a lens in front of it. The idea is that the emitter illuminates a spot on the wall and then the lens images the spot on to the PSD. As the distance between the sensor and the wall changes, the location of the spot on the PSD moves. By determining the location of the spot on the PSD, you can tell how far the wall is from the sensor. What is super nice about this approach is that it is wall reflection intensity insensitive. The downside is that it requires precise location of the emitter, detector, lens and two trans-impedance amplifiers per PSD." – Micromouse Sensor Design, by Harjit Singh.

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MITEE 7 (1994) by David Otten and Tony Caloggero, MIT. MITEE Mouse 7 won the 15th All Japan Micromouse Competition in 1994, with a time of 11.81 seconds. It's a four wheeled mouse with DC motors. MITEE 7 also took part in Techno Games in 2002. "In its Heat it fought against returnee Dash 2A. Mitee Mouse 7 raced through the maze at incredible smooth speeds. It slipped through corners and even avoided twisting and turn, opting to go diagonally ahead. The robot sped through to the centre at a World Record time of 9:65 seconds." – Techno Games Wiki.

The first video is an excerpt from "UK Micromouse 1998" showing MITEE 7 on a training run, while the second snippet is a full-speed race to the centre (from the same source).

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MITEE 6 (1990) by David Otten, MIT. MITEE Mouse 6 was the winner of the 11th All Japan Micromouse Contest in 1990. "Batteries and motors dominate [the weight], you should be able to reduce that. Each of the models that we've made has been less powerful than the last one."

The video is an excerpt from "UK Micromouse 1990."

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MITEE 4 (1989) by David Otten, MIT. MITEE Mouse 4 was the first in the MITEE series to do away with the downward facing infrared wall sensors.

The video is an excerpt from "UK Micromouse 1989."

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MITEE mouse III circa 1990, by David Otten, MIT. The MITEE mouse with the giant clawlike appendage. "For a reasonably competitive mouse, you will need to sustain an average speed, including bends, of about 0.8 m/s or better. Straights, especially long ones could get much faster. Dave Otten’s MITEE mouse III, raced in 1990, boasted a top speed in excess of 3.5 m/s." – Motor Dynamics, Micromouse Online.

"Mr David Otten (above right) from Boston, US, was the overall winner at the second Singapore International Micromouse Contest held at Nanyang Technological University yesterday. His micromouse negotiated the maze in 10.19 seconds. Mr Otten was accompanied by his son Jimmy (above left). The contest was held at NTU as part of its inaugural celebrations. Dr Tay Eng Soon, Senior Minister of State (Education), was the guest-of-honour. Seventeen micromice took part in the contest. Besides 10 local micromice, the contest attracted top micromice from the US, Japan, Hongkong, Australia and New Zealand. The contest, which was organised by the Institute of Engineers Singapore (IES), calls for participants to build a small but smart battery-operated micro-robot to negotiate a maze in the fastest time without crashing into the walls of the maze." – Mighty mouse from US wins maze race in 10.19 seconds, The Straits Times, 7 July 1991 (page 14).

The video is an excerpt from "UK Micromouse 1990."

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Supermouse (1989), UK. "It's built for ordinary ambient light, … No – it's got too much light."

The first short video above is an excerpt from "UK Micromouse 1989" while the second more successful run is from "UK Micromouse 1990."