Difficulty: Moderately Easy
Getting to World Eight
Step1
Finish World 1-1 quickly by going down the third pipe you see. You'll get some extra coins and come out near the goal.
Step2
Don't take the exit pipe in World 1-2, but use the elevator to jump over it. Run past it to the Warp Zone pipes and take the pipe to World Four.
Step3
Hit the invisible blocks under the blocks immediately after the first elevator in World 4-2. Use them as steps to release the vine from the far left block.
Step4
Climb the vine to reach the coin zone. Take the warp to World Eight at the end.
Step5
Run as often as possible in World 8-1. This is one of the longest worlds with only 300 seconds to finish.
Completing World 8-4
Step1
Go down the third pipe you see after you cross the lava pool.
Step2
Avoid the flying Cheep Cheeps in the third leg. Go down the pipe immediately after the lava pit.
Step3
Don't swim in the water world, but walk along the floor to avoid the Firebars and Bloopers. Go through the pipe at the end, and then head for Koopa.
Step4
Watch out for Koopa's hammers and flame breath. Defeat him with fireballs or run under him when he jumps and reach the axe.
Step5
Rescue Princess Toadstool and finish Super Mario Brothers. Congratulations!