Not really familiar with the manga etc., but basically the game is split up into sections like infant, elementary school, high school etc. What you have to is climb your way to the top of the building and grab on to a flying jellyfish or something to progress to next stage where Lum becomes. You also have a time limit in the form of flames that continually rise below you. So you have to get to the top before the flames consume you. This game sucks and I believe it also has no end to it as you will have to start all over again once you clear all the stages.

This patch removes full screen flashing effects that the game normally does between levels, and when Rei is onscreen. In the latter case, the screen is just kept in the brighter of the two palettes it normally switches between.

Database match: Urusei Yatsura - Lum no Wedding Bell (Japan)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 4ADE66BF3E9E133A6E008F705EABC2F0590F7872
File CRC32: BBD0542B
ROM SHA-1: 17C22C6A3E2601BD48518B6858C746CB1A4F3130
ROM CRC32: DA5E32E