Instructions in game. Not mobile friendly, sorry.
Edit on March 9, 2021: Added 10% of spawning the correct acid. Increased acid spawnrate from 2.5 seconds to 1.5 seconds. Increased total time from 60 seconds to 80 seconds. The game is still very hard. Need to fix bug where multiple acids can be picked up and dropped off at once. Fixed bug where dropping off acid sometimes picks up another acid and drops it off as well, causing points to be lost.