A creative, fun and snappy game that keeps you engaged all throughout. The atmosphere sent me back to those days of browsing old flash games and enjoying their fantasy vibe with that 'flawed' look that gives you just enough room to imagine more (not to say I have any quarrels with any of the sprites in this game, they just emenate that vibe). The animations too are phenomenal and well done. I especially enjoyed theorizing about what all the quirky and lively items at the shop are all about (though for some of them some sort of an indicator or explenation as to what they do would have been appreciated).
I have a few problems with the game:
1) it feels awesome getting way more money every game, though the shop items ran out a little too soon due to this. Increasing the prices on some of the items (like the permanent health boost) could be helpful in prolonging the intrigue the shop provides.
2) it took me a while to figure out the effect that killing dragons has on your progress. Due to the way the progress bar is designed I assumed I simply have to scale the tower, resulting in pretty long runs. If the game could improve the way it communicates that (whether through particles flying from dead dragons towards the progress bar, a redesign of it entirely, etc.) I think I would have felt less stagnant in some parts of the game.
3) the demonic character and his characterization sparked a lot of interest and curiosity, would've loved to know his motivation and to see some more of the story that it clearly seems you had in mind for him.
All and all, super fun game. Charming vibes and atmosphere, great colours and animation, incredibly tight controls and an overall smooth experience. Good luck!