More levels are being worked on and will update this as I add them. I have the general outline for how the level flow should work with the biomes following an overall basic story arc. I'm waiting before designing more power ups until I have levels and enemies and bosses designed in order to know what power ups are needed. For example, if I have a flying power up, why do I need it? If I have a forest level, why am I there? This first level is almost complete though, only question is on the shield power up if it should be limited time per use(n seconds use with x seconds cooldown) OR have a separate charge that can be used all at once, or a bit at a time, needing to obtain recharges from enemies. I'm leaning towards the 2nd option. I may even wait to offer the shield powerup until later in the game as it's a bit OP - invincibility on demand and such.