Q*bert/Versions
Atari 2600
Released by Parker Brothers in 1983.
Atari 5200 & Atari 800
Released by Parker Brothers in 1983. The 5200 and 800 versions are identical.
Colecovision
Released by Parker Brothers in 1983.
Commodore 64
Released by Parker Brothers in 1983.
Commodore VIC-20
Released by Parker Brothers in 1983.
Intellivision
Released by Parker Brothers in 1983.
NES
Released by Konami in 1989, under the Ultra Games label.
Odyssey 2
Released by Parker Brothers in 1983, primarily in Europe.
Sega SG-1000 and SC-3000
Released by Tsudaka Original in Japan for the Othello Multivision which is a Sega SG-1000 clone.
TI-99/4a
Released by Parker Brothers in 1984.
Noteworthy
Atari 7800
A homebrew development started by Ken Siders in 2005. Still in development by August 2006, going under the title bonQ, and quite accurate by all accounts. Ken Siders has completed a very faithful homebrew of Burgertime for the 7800
Game Boy
Released by Jaleco in 1992. This conversion is technically the start of the updates to the official arcade rules that feature new creatures and modified stage configurations beyond the original pyramid (which is featured in the first stage).
