After trying, for ages, to formulate a nice game-wide Achievement setup, Moshboy told me off, and made me just plain put the old ones in, lest I spend the next 8 years trying to figure out how to do the game-wide ones.

So the old ones are back.

They'll flag when you hit the following milestones.

Kills 50 100 150 200 250 500 750 1000 1250 1500 2000 2500 5000 10000

Time 00:30 01:00 01:30 02:00 02:30 03:00 03:30 04:00 04:30 05:00 07:30 10:00 15:00 20:00

Multipliers 5 10 15 20 25 50 75 100 125 150 200 250 500 1000

So get to it!!
Same link as ever.
(And the bug's still not there!)