Awesome, thanks! Yeah, the G.I.Joe course is definitely a battle. There's a lift on the recreation level near the Archery range. It goes off screen just as you are entering that level of the Pit. But if you wait for it to come back, it allows you to bypass the most enemy infested level of the Pit. Now you know. And knowing is half the battle. lol
I agree on the ending of the Super Mario Bros 2 course. I actually originally planned to put a Bullet Bill behind Birdo (Wendy) so that you could redirect the bullets at her like tossing the eggs. Unfortunately, the bullets don't do damage to enemies, so I scrapped that idea and left it as a regular Koopaling boss battle. Ironically, there were some other ideas that I didn't think of incorporating into the course until after uploading (like Sub-space). I also realized I cut a chunk out of the vine climb to Birdo at the end of the course due to the vertical limitations of the horizontal main scroll. So, I spent a lot of time last night working on a Deluxe Version of my SMB2USA course. I was going to upload it today, but I'm glad I read your comment first. Because, it reminded me to tweak the Birdo boss battle. I added 2 pipes right before Birdo's platform. 1 pipe spawns dry bones to throw, and the other spawns SMB2 Mushrooms to help keep your Super Mario 2 form during the battle. I hope you check it out and let me know what you think of the improvements.
I did use the lift a few times but kept making bad timing jumping on it. I figured I should just go through the enemies instead haha.
Those seem like some good changes, and I will definitely check out the new version next time I get on the game!