Next  version will have a debug menu you can mess around with. Also in next version:

0.0.5a
* fixed languange problem with first start of the game
* updated some graphics (Scoreboard / Invul. blinking / ... )
* added knockback when hit
* added mouse support in slot select screen
* added different attack patterns for boss fight
* added boss fight music
* added debug menu with mouse control
* code cleaning (More script and state based)
more coming until next version

Will see - I think also one more level - more mobs -....