Greatestest Hits requires the new Spider Dance Boss from the Lost Chapter update, for a grand total of 8 bosses. Add any other two songs to the playlist to combine it with Greatest Hits.

Despite what the description says, you can unlock Hendrix Level (and also Chill) in the Playlist gamemode. Most people recommend Cascade or Dance of the Incognizant as the easiest dashless S ranks, but just choose the level you're best at!

If you have 3 or 4 controllers, it's actually more efficient to play hardcore challenges locally to grind beat points, since all of the players contribute towards your beat point count. This will save several hours, but it is quite boring. Not at all required for completion, and playing online is not too much slower, and also much more fun! The choice is up to you.

Guide for Heavenly Star Ranks

Keep in mind that the survival achievements must be done without cheats! Add the one heart handicap for a free +10% score.

For the Wave 13 "Perfect" achievements, you can set your starting wave to 13.

The co-op achievements can be done locally on your keyboard.

All Levels Gold Medal Times

'Hey, big expander' and 'Little big adventure' are broken on the current build.
Use download_depot 324070 324072 7797129869784573529.

Usage

• F1 to Start.
  
• F2 to Stop.
  
• F3 to Quit.

You will need to do (at least) two playthroughs: A completionist playthrough, and a speedrun + deathless + no ability upgrades playthrough. You will take care of all the missable achievements on your completionist playthrough.

During your first playthrough, make sure you get all secrets, cells, map stones, and spirit wells in the areas that you cannot return to. These areas include:

• Ginso Tree (5 secrets, 1 energy cell, 1 spirit well)
  
• Misty Woods (4 secrets, 1 energy cell) Due to how this section works, you will not be able to reenter an area after going to the next one; keep a backup save from before entering Misty Woods to make sure you don't miss anything.
  
• Forlorn Ruins (3 secrets, 1 life cell, 1 spirit well, 1 map stone)
  
• Mount Horu (Once you enter here, you cannot return to the main world map! Make sure you have everything you need before entering. You should have 37/42 secrets, all life cells, 14/15 energy cells, 7/8 map stones, and all spirit wells. Make sure to finish off any miscellaneous achievements you may have missed as well. For Secrets: The counter on the steam achievement might be 1 off, showing as 36/42 instead. This is purely visual and you'll still get the achievement upon acquiring the last secret.)

Video guide for collectibles is available below. Areas with missables are timestamped in the video description.
https://www.youtube.com/watch?v=Ur3uRC7IQoY

General achievement guide for cleanup before entering Mt. Horu:
https://steamcommunity.com/sharedfiles/filedetails/?id=408259781

Speedrun, Deathless, and No Ability Upgrades Trifecta
This actually isn't too bad, as you still get to use the skills from the Ancestral Trees. Once you learn Bash you can simply go past enemies without taking a hit, make sure to use it often as it is very useful for avoiding danger. Make sure you skip cutscenes as these count towards the in game time. Savescumming is also very easy to do. Also make sure that whenever you save, you keep a backup. On the screen that you choose a save, you can press "C" to copy a save file from one slot to another. When you die on a save, the death counts even if you leave and reenter the save. Delete the save you died on and copy the backup over, this way you can keep your death count at zero. Since this is your second playthrough and you don't need to go hunting for secrets, you will finish well under 3 hours of in game time; you really don't have to worry about being super fast.

You will need to do 3 playthroughs: A playthrough consists of all the levels of Act I and Act II (first and second row). Use the Complete Mission cheat to go through all levels in singleplayer, multiplayer, and in zombies mode. Make sure to use the Collect All Loot cheat on every level on either your singleplayer or multiplayer playthrough to avoid having to replay levels. Cheats work in both local and online coop.

Single/Multiplayer just means you are one player or 2+ players, you can do all trophies in local or online play (press P to toggle in lobby), you will need 2 controllers for local coop.

For Zombies mode, you need to change the version on the main menu from Enhanced to Zonaco.

Cheat Codes:


You can check trophy progress for each level in the level select.
The first one is for single player completion.
The second is for multiplayer completion.
The third is for completing the mission with no deaths.
The fourth is for getting all loot in the mission.
The fifth is for zombies mode completion.

Whacked can be gotten in any PvP map, but can also simply be unlocked in the Act I Epilogue. Must be done online.

For Slippery, you need to do the first level in the game in under 1:10 while collecting all loot. Each coin you miss increases your score by 10 seconds, and using cheats defaults your time to 1 hour, so this must be done legitimately. Go Locksmith and run through all the lasers. Near the end clean out the place from top to bottom since bottom has a side exit. This may take a few tries to learn the route but is very doable.

All other miscellaneous can be easily cheesed with this Workshop map. You will need either 3 players or 3 controllers for Play It Again Sam.

General Achievement Guide
Animal Orb Locations

Important Things Not Mentioned In The General Achievement Guide
The 40 Arena Wins are most efficiently done on the "Beefy" mode. Grab a chicken and then perform an air combo (jump before attacking). If you get proficient enough you can kill with just one chicken.
You can actually do "Medic!" with one other person, if you both have a keyboard and a controller. If you're doing it alone, you will need a keyboard and 3 controllers.
You can cheese "The Final Countdown" by pausing right after you make a move; so you can see which button you need to press to advance without the barbarians being able to move.
Rebeating the Barbarian Boss with a high level character is the best way to farm money for the expensive pets.

General Achievement Guide

S Ranks require you to get an S rating on 2 out of the 3 criteria at the end of any given level. Speed and kills is the best approach. You will also get an S rating for doing a pacifist run (instead of kills), but almost every level requires you to kill cops anyway.

If you are having trouble with any particular S rank, you can watch this helpful video. Video courtesy of uzzbuzz!