This mod adds a time attack and score attack mode to SMBX. The life and coin counters and the reserve box have been removed entirely. In their abscence, a (faster) NSLU timer is now present in every level! Try to complete levels as quickly as possible to earn a trophy! Medals are awarded for achieving a high score. At the end of each level, you earn a time bonus of 100× the time remaning when the level was cleared. Instead of awarding extra lives, 1UPs now give 10000 points. To prevent grinding from becoming tedius, powerups are not preserved on the world map to ensure all scores start without powerups.

This library has UIs for both the map and levels. Make sure to require the right one in your script! Shared functionality is in luigiX_core.lua. To add medals/trophies to your levels, add a file called luigiX.json to your level folder and enter a list of numbers under the corresponding key.
Warning: this script is incompatible with the new SMW goal tape as its time bonus conflicts with the time bonus included here.
download it here!
sample episode