Just add your standalone Super Pixel Bros. rom to the practice rom tool, and it will create a practice rom that is very intuitive and functionally similar to pellsson's smb1 practice rom.

3creepio's Practice Rom Tool

Do you want to get a decent run with safe strats? Use this to compare your gameplay with a 5:04!
Consider also using this as an example to see that gameplay is needed https://www.youtube.com/watch?v=tcNi8rLEc00

Good luck!

5:04 Livesplit comparison

THIS IS NOT A ROM FOR SUPER PIXEL BROS. Attach this ips file to a standalone ROM of the original Super Mario Bros. to play the game

IPS file for Super Pixel Bros.

Nebula_Composer

yelia64

averge11

Super Pixel Bros.

Nintendo Entertainment System

JeremyMKW

eddiecatgaming

stem_kuki

USA / NTSC

JPN / NTSC

NTSC

Platform

Runs 5:10, or slower will be truncated to the second. [For example, if your run is 5:11.337, it will show as 5:11]