go to fcuex.com for an emulator and go to http://bit.ly/2vQDn6S to download the practice rom, there is no ad at that link.

A good way to practice is a buy a game genie and enter in the infinite lives code

and what is that code?

Ya pull off the infinite lives trick

practice rom is my idea

the infinite lives code is SXIOPO if i remember correctly

k thx

Practice the level that you are working on optimizing, and every time you die, play it again. Then once you game over, you hold A on the title screen and press start to go back to that world. I did this earlier today to practice 8-1.