Level 8 is a maze. Memorize the rooms' numbers 1-3-4-8-2-6 (Chinese characters) to get to the final boss.
This was one of the first video games I played, Back in the day, a lot of si gina crowded around video game shops to play the games. Jurong East central, the HDB heartlands, People's Park Complex, Bukit Timah Shopping Centre... everywhere.