Here is my 100% Achievement guide!
So we have around 36 levels (Plus a few more Scourge ones),There is 1 relic on most levels and every skill requires a lot of coins.
The best place to farm for coins is the 2nd to last level (Monolith Chambers)
You fly on your dog, and can grab around 600-700 plus in each run which only takes around a minute or so.
Timestamps will be below the video on and on YT to help with anything you may need
Hope this helps :)
1. Wow, Rude. - 2:00
2. Welcome To Rosantica - 2:35
Level 1 (Wildedge Grove) Start - 2:50
Hey There, Bax! (Achievement) 1/4 - 4:55
Relic 1/20 (Book) - 6:15
3. Oooh, Shiny! - 6:30
Level 2 (Shrine Of Influence) Start - 7:45
Level 3 (Wildedge Retreat) Start - 10:05
Relic 2/20 (Jewel Necklace?) - 13:15
Level 4 (Hollows Reach) Start - 15:30
Relic 3/20 (Scroll?) - 18:00
Level 5 (Hollows Isles) Start - 21:50
Challenge 1.1 (Talk To Jungo The Fisherman) - 22:15
Level 6 (Wilder Falls) Start - 22:40
Relic 4/20 (Masquerade Mask) - 25:30
Level 7 (Sanctia - The "Home Hub") Start - 27:35
Relic 5/20 (Gold Cross) - 28:20
Challenge 2 (Grab Key, Go to Wildedge Retreat & Find Door) - 28:35 Start/33:20 Finish
Level 8 (The Great Forest) Start - 33:30
Relic 6/20 (Viking Helmet) - 35:05
Level 9 (Tempest Base) - 36:05
Back To Sanctia - 37:50
4. Time For An Upgrade - 38:00
Level 10 (Frigid Mines) Start - 39:25
Recli 7/20 (Chalice) - 45:15
Level 11 (Frosted Caverns) - 47:15
Relic 8/20 (Feather) - 53:15 Start/55:05 Finish
Level 12 (Bleakstorm Ridge Into The Great Forest 2) Start - 56:15
5. Smash, Crash, Bash! - 59:35
Level 13 (Crimson Sanctuary) Start - 1:03:35
Level 14 (Bleakstorm Ridge Proper) Start - 1:04:45
Challenge 1.2 (Save Rickathon from Wolves) - 1:06:05
Relic 9/20 (Knight Suit) - 1:07:15
Level 15 (Clearcrest Springs) Start - 1:11:50
Challenge 3.1 (Talk To Tholmin Jr) - 1:12:00
Hey There, Bax! (Achievement) 2/4 - 1:12:10
Scourged Level (Frigid Mines) Start - 1:12:35
Back To Hollow Isles - 1:15:15
Challenge 1.3 (Get Key, Go to Door, Complete Challenge) - 1:15:25
Woodshade Settlement Start - 1:17:50
Challenge 3.2 (Talk to Tholmin Sr) - 1:17:50
Back To Clearcrest Springs - 1:18:30
Challenge 3.3 (Talk to Tholmin Jr Again, Get Key, Complete Challenge) - 1:18:40
Level 16 (The Whirlwind Assassin) (Bora Boss Fight) Start - 1:21:50
6. The Whirlwind Assassin - 1:23:05
Back To Sanctia - 1:25:00
7. Crimson Combo (Plummet) - 1:25:10
8. Finally, I Was About To Give Up - 1:26:30
Level 17 (Seabarrow) Start - 1:27:30
Relic 10/20 (Necklace) - 1:33:35
Level 18 (Neptyn Capital) Start - 1:35:20
Scourged Level (Wilder Falls) Start - 1:36:40
Level 19 (Crystal Grotto) Start - 1:38:55
9. Chain Reaction - 1:43:10
Relic 11/20 (Crown) - 1:43:45
Level 20 (Palace Of Aquaras) Start - 1:48:35
Relic 12/20 (Gold Staff) - 1:51:25
Level 21 (The Aquatic Voltknight) Kravios Boss Fight Start - 1:55:45
10. The Aquatic Voltknight - 1:56:35
Back to Neptyn Capital - 1:58:05
Challenge 4 (Get Key, Go To Crystal Grotto, Find Door, Complete Challenge) - 1:58:15 Start/2:01:20 Finish
Level 22 (Woodshade Settlement) Start - 2:01:40
Scourged Level (The Great Forest) - 2:02:35
Level 23 (Shadowhaven Trail) Start - 2:03:10
Relic 13/20 (Coloured Bean?) - 2:04:34
Level 24 (Noxious Everglade) - 2:05:30
Relic 14/20 (Cat Statue) - 2:08:25
11. Bo-Bo-Boing! - 2:12:35
Level 25 (Typhir Marsh) Start - 2:13:20
Scourged Level (Crystal Grotto) Start - 2:22:05
Level 26 (Cedarstone Cove) Start - 2:24:10
Relic 15/20 (Man Statue) - 2:25:45
Back to Sanctia - 2:36:20
12. Crimson Combo (Air) - 2:36:35
Level 27 (Desolate Woods) Start - 2:37:55
Hey There, Bax! (Achievement) 3/4 - 2:38:00
13. Rozia, Just Stop. - 2:38:45
Level 28 (Cedarstone Plateau) - 2:39:00
Relic 16/20 (Whale) - 2:45:20
Scourge Level (Typhir Marsh) - 2:50:00
Level 29 (The Toxic Marksman) Xellios Boss Fight Start - 2:51:20
14. The Toxic Marksman - 2:52:45
Back To Typhir Marsh - 2:54:40
Relic 17/20 (Skull) *Collect at 2:55:40 & Challenge 5 (Get Key, Go to Cedarstone Cove, Find Door, Complete Challenge) - 2:54:40 Start/3:00:35 Finish
Back To Tempest Base Start - 3:01:00
Level 30 (Tormented Monolith) - 3:01:50 Start
Relic 18/20 (Sword) - 3:04:30
Level 31 (Grand Archives) Start - 3:11:00
Hey There, Bax! 4/4 - 3:11:20
15. Hey There, Bax! - 3:11:40
Scourged Level (Cedarstone Plateau) - 3:12:35
Level 32 (Monolith Chambers) Start - 3:16:00
Relic 19/20 (Bone) - 3:18:40
Level 33 (Zealocks Lab) Start - 3:24:30
Challenge 6 (Make Sure you have 2000 Gems, Get Key, Go To Grand Archive, Find Door, Complete Challenge) - 3:25:40 Start/3:28:40 Finish
16. Challenges Challenged - 3:28:45
Level 34 (The Shadow Sorceress) Imbra Boss Fight Start - 3:28:50
17. The Shadow Sorceress - 3:31:15
Level 35 (Monolith Chambers 2 Into Citadel Reach) Start - 3:31:40
Relic 20/20 (Picture?) - 3:32:10
Level 36 (Zealocks Chambers) Zealock Boss Fight Start - 3:33:25
18. Zealock - 3:38:00
Back To Sanctia - 3:39:20
19. Yombal Happy - 3:39:30
20. Tri Hard - 3:40:20
Go Back to Citadel Reach for Easy Gems - 3:42:20
21. All Skilled Out - 3:44:50
22. 101% Complete - 3:45:05