I'm still raging through the library, I must've failed a couple dozen times now on that same electric tile. If I even nick the tip of it, I die. This seriously gives no room for error. If you're off by a pixel, you're screwed. And that's pretty hard to do when momentum actually doesn't carry through in this game.
And then there's the puzzles with those worms. If you even screw up by accidentally hitting a tile to charge a shot, you have to do the whole thing over. As in, restart all the frigging way from the door. It really doesn't help that my high jumps never actually seem to work half the time because if I jump too early, I hit the ceiling and fall. If I jump too late, I end up not jumping at all and I hit the dripping thing on the ceiling. And if I do it perfectly, I get nabbed by the fairy throwing dozens of little fireballs at me which seem near impossible to avoid.
Edit: Well, I made it through the library by spamming Candy on the electric tiles. Now I'm farming Energy points off that first knight in the bottom floor. 300 points per 8 second run, not that bad. I'm still wondering where to go next though. I've basically been through every area by now except for the maid rooms. Anyone have any clue where to go next?