It's really up to you to decide whether the next level should be a castle or a cave - you even decided that it'd be a cave in the first post while bringing up the order - but if I had to choose, I guess a castle sounds a bit more original.
I say cave, but have a castle section in the cave.
I choose castle, I agree with Katerpie, it sounds more original.
I really like everything going on in the first couple rooms, especially the parts 0:31 at 1:37.
Although, in the room at 4:03, can't you avoid killing the puffer fish and using it to take damage after getting the mushroom? I suggest you put some insta-kill piranha plants up there to avoid squeezing out with the mushroom. Also, I suggest you remove or replace the room at 4:30 with something else; it seemed really long and pointless.
It was a good stage overall, not your best though honestly.
Originally posted by Sixcorby
Also, I suggest you remove or replace the room at 4:30 with something else; it seemed really long and pointless.
I like how you developed the dolphin gimmicks, so good job on that. At 1:21, instead of doing all the process of using the throw block to hit the ON/OFF switch, you can bump your head on the one that's above you. You should add cement blocks to make that impossible, and you can keep the shell by simply bouncing on the blue shelless koopa. I agree that the block duplicating room should either be taken out or replaced.
The whole eating block part is pointless to do, unless you need it to eat through a wall which Mario can't get past. And finally, in the room at 5:14, you can kill the Rip Van Fish upon entering it. Otherwise, it turned out to be a good stage overall.
Thanks for the feedback guys!
Now the room at 4:30, I could make it harder, how about this?
Now I'm really looking forward to the final stage, it will probably be divided into two parts and I'll try to make it a Mind Fuck level, and I have no plan what music I should use. But until then, I still have time!
A few new screens
a very easy puzzle
A very unfair part
Mario is on an invisible yoshi
much layer 2 with sparky!