If you love classic 2D platform games that really test you, then Toilet Boy is the mobile game for you.
Get your retro game fix whenever you need it. With bite-sized levels, you can pick this game up for a 5 minute session (on the toilet perhaps?), or marathon the whole thing in one go.
Earn achievements and challenge your friends on the leaderboards.
Collect toilet rolls as you go, to unlock new chapters.