|Took over 2 hours to complete world 7 and finish the game. This last world introduced the UFO powerup. It makes you small, but also lets you fly and shoot for a limited time. The levels here are all pretty hard, which is the main reason it took so long.. I didn't have much trouble finding the red stars, with the exception of a few.. but just getting the red stars and beating the level was really hard.|
The last level was a short SMB3-style airship level with no red stars... then it took me to this submap with a big tree that I can't return from or save, and there was this one last really hard, fast autoscrolling level that I had a lot of trouble on, but eventually finally beat it with like 7 lives left, then it just took me a couple more lives to beat the last boss.
I'm actually missing a secret exit and hidden stage somewhere around world 3, so the extra world hasn't been unlocked yet.. once I get to the extra world, I'm not gonna attempt to beat that world in one sitting like I did all the other worlds.