Sadly we didn't have time to add in progression to the game, however we plan to add it in future builds. The green potion increases maximum mana (and adds a bit). The way our game is related to the theme is the amnesia of the player being so out of control that they can't remember what they have been doing, and thus where they are going, causing the random room placement. (honestly, we probably stretched it a bit because we had previously had the idea for a game like this and didn't have high expectations of ourselves so we thought it'd slip under the radar)