Nice collection of various minigames.
It might be nice if you had to press different keys (not only spacebar) to keep focused or pressing it only when some prompt appears as it would really require you to be really focused as a player.
At first I found it difficult to recognize what minigame is ready, but once I got familiar with the assets, it was no more an issue. Still some universal indicator might be handy.
Good job finishing your (from your profile page I assume first?) game!