I lied lmao, I wanted to add more rooms so I did just that, now there's five rooms will full collision.
The flower bed room, Flowey encounter room, the room with the first savepoint (no savepoint added as of right now), the first puzzle room and the big room with levers and bridges.
EDIT: My computer works now yippee
EDIT 2: I forgot to also mention I added a 3D banner, adding it to the images