3D TicTacToe is played on a 4x4x4 grid. You need four in a row to win. The 'Hard' and 'Harder' computer levels are pratically the same. 'Buff' is a depth-limited search with alpha-beta pruning. I added some primitive move ordering to enhance the speed effects of the pruning. Buffness (depth limit) 5 could still take up to a minute; Buffness 6 is not for computers that are faint of processor. Shuffle allows equal moves to be chosen amoung randomly. Otherwise, there is no randomness in the 'Buff' level.

SpaceInvaders is not entirely my own creation. It was a team project for a freshmen class I took. However, I carried the team, if I do say so myself. By the way, I am by no means a Jets fan. I forget how they made me go along with that team name. Also, there are cheat codes; I think they all begin with the letter 's'.