I'm going to be away for most of this coming week, so I won't really be able to work on this for a few days. Better to make this thread now, I guess.
Anyway, it's level 1-5. And there's falling blocks. Here's some screens of my progress so far:
Think fast indeed! Don't worry, the player has a good four seconds to get out of the way of this first obstacle, so they should be fine even if they don't notice what's above their heads immediately.
One of the first collectibles in the level. If the player is swift, they can nab the flower.
Hm, where does this door go?
It's a kill room! Meet the Ravens!
I wonder how to get this flower up here?
The start of another section of level.