Developer answered level 25 in their response to ijarcol: "Sequence 1: all letters facing left or right. Sequence 2: letters R facing left or right. Sequence 3: letters E facing left or right. Sequence 4: letters D facing left or right. Sequence 5: RED facing left or right (so RED or DER)."
Overlord's New... Armor? should definitely be a Hard Badge. If they made a mode where you lost 1 cent every time you died and the goal was to have $4.99 or more once you won to buy the overlord a Big Mac you could name an Impossible Badge: A Royale with Cheese, Please...
These Cursed Treasure games are fun for a while, but they are essentially identical. Why would someone want to play a ~3-6 hour long game 5 times for essentially identical achievements? In retrospect, games/devs like this shouldn't have gotten this much attention for recycling games.
Easy Level 5: Swap to green character and run to the bottom left. If the orange guys get close to you swap back to blue. Wait until the orange guys are further away from you, and guide them up to the top left the to the right and over the spikes. The orange guys will die if they touch the spikes. Which makes the level a cakewalk.
Why does the game force you into full screen mode? Then, if you exit full screen, it's super tiny, and you can't reopen full screen mode? Other than that, the game feels clunky. If you get hit, you can keep running into an enemy and lose all your lives, maybe restart at the spawn after getting hit? The aggro distance is somewhat short, which makes it difficult to pull enemies without running into them, maybe double the aggro distance and make them move slower the further they are away from you? Possibly let them move around freely instead of standing in place as well?