According to the leaderboard, nobody has beaten the game on this build. I'm cautious to play the difficulty card, but are the desert and summit too hard right now? Feels like too many aiming turrets maybe? I definitely appreciate the removal of spawners from Jungle, those had the potential to ruin your economy if you weren't paying attention.
Unrelated: when you press A after a daily challenge it sends you to the main menu. This is better than just restarting, but I'd much rather go straight to the daily leaderboard, since I do this manually every day. Or maybe integrate the daily leaderboard into the game over screen somehow? (Maybe just "Rank: #5 of 25" or something?) Something about the way the UI works right now doesn't "feel" like a Daily Challenge, it doesn't make that "well that was my only shot!" as explicit as it should.