Here is the full list of all 14 Pixel Ripped 1989 achievements.
Hit the spitball in the bin 3 times
Be brave
Finish Level 1
Finish Level 2
Finish Level 3
Complete the game
Activate all the Teacher Distractions available in all levels
Keep your eyes glued to the TV during the video lecture
Show your swing-winging skills on Level 4
Complete all levels of the game in one sitting
Finish the Level 2 Boss Fight without letting any dragon reach a child
Use a secret weapon during the Boss Fight in Level 2
Find all the hidden cartridges in the game
Reach Level 1 Boss Fight without looking at the Gear Kid