Hello, thanks for showing interest in my game.
If you have a high performance PC, it's likely that the game has issues, because it's made with BGE, although, many other lower quality PC's do usually boot the game. You just need to press .exe file. As for the problem in the game, the menue shows written words and prompts next to i - little white columns, in order to start the game you click on those columns.
I hope that helps.