Nickelodeon All-Star Brawl currently has 24 achievements.

It'll probably take around 10 hours to get every achievement.

If you're good at platform fighters and are solely playing to get the achievements, it'll take about 5 or 6 hours.

If you can sometimes beat a level 9 computer, you can 100% this game.

I'd say the majority of the achievements are easy, with a few exceptions.

5 of the achievements will require online play.

No missable achievements, but some may feel tedious if you didn't start the game off doing them.

Use the map or [CTRL + F] to help you find the achievement you're looking for!

C'mon! ¡Vámonos!

If you're looking to finish these as fast as possible

• Setting the difficulty to "Very Easy" will reduce the enemy stock down to 1
  
• Choose small stages or the ones that you you know how to cheese early kills on

It should take around 7 minutes per character on very easy, totaling around 140 minutes or so to finish the mode with all 20 characters.

Way better doing these achievements with a friend!
If you don’t have any locally, use Steam Remote Play!
If you don’t have any friends, here’s a guide for that![www.wikihow.com]

If you're in a rush and/or don't have any friends, you can use these settings to quickly get these over with.
* Check out the achievements below before doing this.

• One stock
  
• Teams On
  
• 3 level 9s vs You
  
• Stage: Space Madness
  
• Rematch to keep settings

Unlocking "Unleash the DOOM!" automatically unlocks the other two, so we'll be focusing on that one here.

This is technically the hardest local achievement in the game, at least with no work real work around like most of the other achievements.

I'll be sharing the easiest method I've tried out so far alongside a video.

• Play as anyone with a good recovery
  
• 3 Enemy Reptars
  
• Remember to set all of them to level 9 and on the same team
  
• Stocks: 1
  
• Stage: Space Madness
  
  Stay shielding on the middle of any platform till it falls close to the edge of the stage.
  Jump off last second and repeat until all the Reptars fall off the map.
  
  

These achievements are actually way easier than they look.

You can set the AI to level 0 and they'll just sit there.

I figured out a way to get the balls into the goal pretty fast.

Stage Settings

• Sport of Choice other than "Plankton Ball"
  
• 1 vs 1
  
• Score to 10 (1 or 2 extra in case you manage to score against yourself)
  
• AI to 0
  
• Play as Korra
  
• Stage: Rooftop Rumble
  
• Punch(with special) or throw balls in the goal

Plankton Ball

• Ball type "Plankton Ball"
  
• 1 vs 1
  
• Score to 11
  
• AI to 0
  
• Play as Danny Phantom
  
• Stage: Rooftop Rumble
  
• Push the ball a bit, keeping it on the platform. Down Special while hugging the ball.

Below I made videos on how to score on each sport.

Move it, Football Head! - Football / Rugby

King of Sportz - Soccer

Better than the Turkey Jerkies! - Tommy Ball / Basketball

Going Ghost! - Yarn Ball / Dodgeball

Smashing! - Plankton Ball / Medic Ball


*There might be a set AI + Map combination that could do everything for you, but I wasn't able to figure it out.

• Neither Competitive or Lobby Games count for this achievement
  
• It will only count online quickplay matches

• If you're having trouble getting these achievements, you can do these through the lobby mode with a friend.
  
• Make sure you set it to competitive for it to count the rating.
  
• If you're still having trouble making friends, I suggest trying out the official discord[discord.com] and ask for help on these achievements.

Achievements not unlocking?
Either try connecting to online play or close the game.

I didn't get any of my achievements till I closed out of the game.

10/5/2021: Game's Released, Guide started after 100%
10/6/2021: Written portion of the guide complete
10/7/2021: Images Complete, Added Videos
10/11/2021: Internet back online, Images Added. Guide Released!