Ahem

You have to use the slam guys. Max out your damage then get the garden, get flower power and make slam guys. They will move the entire pile until tens of millions is falling in at once. I'm pretty sure this is the only way to max your talent points.

Once you start doing it you'll be kind of pissed you struggled with other methods.

Also, because you have a life and other games to play, make use of cheat engine's speedhack. Just makes the process faster.

Theres multiple ways, dirty drones is 1. Slam is tbh just bad

Ultimately rockets are the only thing that deal significant enough dps to invest in, so you're going to want the upgrade that turns fire breath into minigun bullets, the upgrade that turns bullets into arrows (so rifle gnorps can shoot ice arrows), and the upgrade that makes minigun shots have a 10% chance to spawn a Y-rocket. You'll also want the pocket rockets upgrade on your bombers. All this together maximizes your rocket spawn rate and lets you spam the freeze debuff for damage multiplication.
Oh also since the slammers pretty much exist only to spawn rockets with this strat, don't bother giving them meditation or preparation jumps, they just need to be getting in as many combos as quickly as possible to spawn more rockets.

17?

I have 21 talent points

the 100+G guide has 23 points it recommends using

I think they mean for talent tiers, tbh dont have the progression # memorized tho