- hidden 1-up blocks are hidden in 1-1, 3-1, 5-1, 7-1. You must get enough coins in prior x-3 stage for these to appear. Example: I got enough coins in 2-3, now the 1-up in 3-1 will show up.
- shell combos with 1-ups are possible in levels 3-2, 5-1, and 8-1
- grab every coin you can without being dumb
- Beating the game will net you 100k per life left, and will almost definitely give you over 1 million if you do.
- fastest route to beat game: 1-2 -> warp to 4-1, 4-2 -> warp to 6-1
- pattern for 7-4 is bottom, top, top then bottom, top, bottom
Good luck all.