@ Gzegzolka: Thanks a lot from me as well! Regarding your proposals:
- More upgrades and upgrade types are planned, yes.
- We've got already a very detailed plan and a list for different enemy types and enemy behaviours! F.e. the armored and the enemy that splits into smaller ghosts is already on that list! Very cool ideas with the teleporting and invisible ones! We might implement those also
- There will be definitely more collectables though it's not our no1 priority to add more money items (but who knows, we'll see about that)!