I obviously loved the graphics and that pool thingy was adorable, too,.
Parallax scrolling would have added to the background a lot, but due to those really high lollipops that's impossible to do. Would love to see some simple layer 3 clouds or something here, though, after all you can't really go overboard on effects in that kind of level.
Not really a fan of the red shooters, it kind of doesn't look right, I see that you tried to make it fit better, though.
Also, invisible Bullet Bill, along with the following:
There were sprite tile issues all over the place, fixes itself when you set the Sprite Memory header to 10.
Spikes hurt you from the side.
Really annoying throughout the whole level, you might want to fix that.
The fish don't really like staying in the water now, do they?
Also my game crashed in Snes9x here for some reason, happened only once though.
Slowdown in these places for some reason, they don't even look like there are too many sprites there.
Love the simple bonus room and the level overall was lotsa fun to play, especially the lineguide part, that stuff was changing without my control made me die the first time because of how sudden it was, but it made the whole thing more fun on my second try.
Also wee I love the brown rotator thingies.
Your layout has been removed.