Without cheat engine to slow the game down, this achievement is impossible. 10 maximum 'maybe' but honeslty 5 is the natural limit. You cannot possibly expect us to juggle the same coin 30 times.

What were you thinking?
wait I know... steam achievement farmers.. make it impossible for them.

7 is reliably achievable.

The main problem though is, the program just throws 4+ targets at you the same time constantly, and THAT makes it reliably impossible.

But I assure you, this is how it worked as a flashgame too, so duh.

What can I say? Git gud.

Aim below it, alternate between hitting the coin and the rest... With some practice you can go well beyond 30. Also if you wanna cheese it, you can just keep closing and reopening the training until you get the coin as the first thing, that's how I got my highscore.