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Cart #43668 | 2017-08-27 | Code ▽ | Embed ▽ | No License

Slime Bubble Bro is a fast action platformer arcade game.

You are the Slime Bubble Bro and your mission is to save Slimette from the evil clutches of the Skeleton Gang and their minions!


  • <x> to jump, <z> to shoot
  • Bubble up your enemies until they explode
  • Push bubbles around to chain their explosions and get more points
  • Bosses can't be bubbled, but you can use their minions to do more damage


  • 32 rooms
  • 4 boss fights
  • Infinite lives, but there's a score penalty every time you die, in fact, your score can actually become negative
  • The game can be finished in less than 15 minutes
  • Bubbled enemies also serve as shields from incoming enemy bullets, use them strategically
  • Reset the cart after finishing the game for a little surprise


Main Influences: Snow Bros & Bubble Bobble

As always: comments, bug reports and suggestions for improvements are greatly appreciated.

P#43663 2017-08-26 20:38 ( Edited 2017-12-14 16:51)

Whoa. This is super polished! Really nice work. Very fun to play! :D

P#43665 2017-08-26 20:58 ( Edited 2017-08-27 00:58)

Love this game, reminds me of Bubble Bobble!

P#43666 2017-08-26 23:40 ( Edited 2017-08-27 03:40)

Wow, very nice, love the action! Well done!

P#43689 2017-08-27 14:54 ( Edited 2017-08-27 18:54)

This is amazing. I loved playing Snow Bros in the arcade. Tumble Pop too. (I don't think I've ever seen a real Bubble Bobble machine, but I've played it quite a lot too on one platform or another.) Sadly I'm not very good at any of them!

Really fascinating score/lives mechanism. I wonder if my score will wrap around when it gets too negative...

P#43691 2017-08-27 17:42 ( Edited 2017-08-27 21:42)

This game is awesome! Lots of fun and fast paced action! I like the character animations too! Music is ultra!! Perfect!

One idea about the controls tough: If pressing UP+shoot, would be cool if slimey could shoot upwards, to get some flying monsters down :)

P#43696 2017-08-28 07:52 ( Edited 2017-08-28 11:54)

How awesome, congrats.

P#43699 2017-08-28 09:19 ( Edited 2017-08-28 13:19)

Thanks for your comments, everyone! Glad to hear people are enjoying the game!

@weeble: The score indeed will probably wrap around, I considered guarding against it but decided not to bother since it would take a lot of deaths to get there

@sulai: I toyed with that idea early on but decided against it in favor of player package simplicity

Thanks again guys! It took me a good while of spare-time work (started around the end of May I think) but I enjoyed making this game a whole lot! I <3 Pico-8!

P#43707 2017-08-28 15:44 ( Edited 2017-08-28 19:44)

Bubble Bobble is in my top half-dozen games late 80's - early 90's games,¹ so this looks like home to me. :) I spent so many quarters back in college, at least until I got good.

¹ - Robotron is in first place, with Golden Axe, Bubble Bobble, and Double Dragon trailing just a little behind in a gaggle.

P#43711 2017-08-28 19:02 ( Edited 2017-08-28 23:02)

My list is very similar, Felice! I would only add Ghosts and Goblins, R-Type, Gauntlet, Shinobi... so many good arcade games back in the day!

P#43715 2017-08-28 21:24 ( Edited 2017-08-29 01:24)

Great game!
Tough as hell (for me), but that's ok - just makes you more determined to beat it!
Congrats :D

P#43718 2017-08-29 01:34 ( Edited 2017-08-29 05:34)

I just beat it, with a million of deaths :D Awesome ending, too!

P#43735 2017-08-29 13:18 ( Edited 2017-08-29 17:18)

@Liquidream: Thanks! I have trouble finishing it with a positive score myself :D
@sulai: a million deaths?! :D you get the persistence achievement! Glad you liked the ending!

P#43739 2017-08-29 13:30 ( Edited 2017-08-29 17:30)

this is so fun! do you mind if i post a 30 minute version of the music in this game? I'll credit the game in the description and will not claim it as my own. I'll share the youtube link with you and upload it if you're ok with it

P#43895 2017-09-03 13:15 ( Edited 2017-09-05 07:14)

Sure thing, mushrombrother!

Let me know when it's up to check it out!

Would also be nice if you add a link to this thread and to the game's itch.io page:


P#43973 2017-09-06 22:57 ( Edited 2017-09-07 02:57)

Oh, this game is amazing! I really love the bubble-shield mechanic!

P#43997 2017-09-08 01:17 ( Edited 2017-09-08 05:17)

I just purchased PICO 8 yestrerday and spent better part of the day playing Slime Bubble Bro. It's fantastic game, really. I haven't had gaming experience like this in ages! It's fast, smooth and nerve wrecking. Thumbs up!

P#44005 2017-09-08 13:11 ( Edited 2017-09-08 17:11)

@egordorichev: Thanks! I actually added the bubble-shield mechanic towards the end of the project but it made so much sense once in. Glad you liked it!

@Ville: Thank you so much for your nice words!

P#44096 2017-09-11 11:48 ( Edited 2017-09-11 15:48)

This is beautiful and fun. I love the green glob explosions. They are very similar to what I want for Spaceman Splorf when he dies in the acid..

I will try to do something similar.

P#47380 2017-12-14 11:51 ( Edited 2017-12-14 16:51)

I absolutely love this game

P#67369 2019-09-07 18:45

Reminds me a lot of DIG DUG but instead of blowing up the bad guys you ... err ... blow up the bad guys. Yeah !

Well you get the idea. Nicely done ! Star for you.

P#67389 2019-09-08 03:42

Great game!

P#128632 2023-04-16 20:28

Great game. I love the polish on it. Very well done

P#128637 2023-04-16 21:34

Super fun. Thank you!

P#132417 2023-07-26 18:37

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