Features:Each puzzle has a distinct start and endpoint.
Arrows force the direction of Your Man.
Wormholes must be used. I found one level without using the wormholes and was perplexed as to why I didn't solve the level.
There are 90 levels and I have no idea how many I did. The menu does not allow me to go back to any previous level or even determine what level I'm on.
The title Tomb of the Brain I'm not sure what that means. Maybe it implies that you need to dig deep into your brain to solve these.