+?: bug or feature?
+ - needs discussion
+
+[?] When jumping into a brick and there is a powerup, it should change
+ direction or not, depending where the collision was. It currently sucks.
+ - Discuss this, is that really what we want?
+[?] Default keyboard setup should change. Up will be needed for other features
+ like going through doors and looking up, etc.
+
+[H] Make sure there are no invalid tile numbers in the level files
+ - Tile 6 occurs in world1/level5.stl as well as other levels
+[H] Worldmap needs to allow multiple maps
+[H] Change resolution to 800x600
+ - Levels need to be updated to resolution
+ (half of the levels have been already updated)
+[H] Buttjump related things
+ ? Right now only breaks bricks beneath tux - what else should it break
+ - Should kill enemies with a certain range
+ - Done--now needs to be tweaked
+ - Animation (need images)
+ ? Should disable Tux's movement temporarily (1 second?)
+[H] Tux should fall while walking in tiles that have a space between.
+ - Possible solution: reduce Tux's width when checking collision with tiles
+
+[M] Save score on per-level basis to make high-score
+[M] Save time on per-level basis to make low-time-score
+[M] Add bonus score for extra time left when finishing a level
+[M] When aborting a level, lives and score should remain the same as they
+ were before. Solution: make more dependency between the game engine and
+ worldmap or just backup those variables before starting a level. - fixed?
+[M] when bumping a special with 2 blocks at once, it won't change direction
+[M] tux get killed if he kicks a iceblock while at the same time bouncing on
+[M] You shouldn't be able to stand on invisible blocks, before you bumped them
+ the roof
+[M] bombs should explode directly when hit by another bomb or a mr.iceblock
+ - right now they transform into a "squished mrbomb"