A fanart for a little-known PC game ‘Rex’ made by Mindscape and distributed by Buka in Russia: http://www.buka.ru/cgi-bin/show.pl?id=114 Donno if it even exists in a non-Russian version, actually.

It is a simple platformer with only two buttons to press, other then arrows, and you have to jump and run your way through different colourful levels. Loved this game a lot. Though, it was very frustratingly hard for the kid me.

I'm now replaying the game, actually. Wanna find some more games like that ^^