I've included a few new features that help with the gameplay.
New Jump Sounds - If you jump once, from a solid surface, you will hear a somewhat ordinary jump sound, like feet on stone, or whatever surface you are on at the moment. However, if you hit the jump key (space by default) again, you will hear a special, spiffy space-jump sound. These sounds let you know what kind of jump you performed, and this can help in some of the platforming sections of the game.
Fixed Menu Issue - If you hit ESC during one of the text narration parts of the game, some things would appear, or disappear, that were not supposed to. This should be working as intended now.
Fixed Load Problem - If you tried to load a game while you were standing near a keyhole, or some other interactive objects, the game had a likelyhood of crashing. This has been addressed and should no longer cause problems.
Secret Areas - There are secret areas in the game, and it will now let you know when you've found one.
Rocket Robots - Some of the enemies in later levels will now fire rockets instead of standard bullets. Enjoy!