Very good entry! Rally Monster is awesome take on Brick Game’s Race game! Mashing monster in Alien Dungeon is cool too. Games play smoothly and are enjoyable. Graphics, sounds and all kinds of effects are amazing and in Gameboy fashion.
I have problems with game window being too small and embedded game itself is in scrolling panel mode.
Also what bothers me is controls inconsistency. To start game you have to use Left Mouse Button, to select game - arrow keys, Rally Monster controls with both A/D and arrows keys while Alien Dungeon can be played with WASD only. I think it should be much more enjoyable with unified controls for both games and game select menu.