8-Bit Night predecessor now on Desura for FREE! Alter Ego is a clever retro styled single screen puzzle platformer with an interesting swapping mechanic. You control a blueish little guy and his phantom alter ego (that moves in a mirrored fashion) at the same time. Swap places with the invincible alter ego to reach normally unreachable corners and collect all the pixels to solve each stage. The game is freely available for PC, NES,MSX and ZX Spectrum.
This is probobly one of the best Retro games that I have played in a long time.
It is like a mental exersise that is fun.
The only thing that I have to say is this game has the quality that you would pay for otherwise.
Get it and play it!
EDIT:
It Reminds me of the "shadow player" pussles in "AndYetItMoves"