Slap the Rocks

Just use level select to complete level 20.

You can do that for all other achieves to complete those specific levels for 1000G. Here's video guide showing levels 1 through 20 with timestamp below.


Level 1 - 00:27
Level 2 - 00:50
Level 3 - 01:35
Level 4 - 02:18
Level 5 - 03:14
Level 6 - 04:30
Level 7 - 05:08
Level 8 - 05:54
Level 9 - 06:36
Level 10 - 07:40
Level 11 - 08:55
Level 12 - 10:15
Level 13 - 11:26
Level 14 - 12:08
Level 15 - 13:32
Level 16 - 14:10
Level 17 - 15:56
Level 18 - 17:12
Level 19 - 17:59
Level 20 - 19:30

You don't need to play each level. You can level select and pick the levels with achievements

00:55 - Level 1
01:20 - Level 2
01:55 - Level 3
02:25 - Level 4
03:05 - Level 6
03:40 - Level 8
04:10 - Level 10
05:20 - Level 12
06:25 - Level 14
07:35 - Level 16
08:55 - Level 18
09:50 - Level 20

Achievement Walkthrough: