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Cart #grandmothership-4 | 2021-03-28 | Code ▽ | Embed ▽ | Forks ▽ | No License

Shoot the Cores!

How fast can you destroy the Grandmothership and all of her cores?

  • Shoot by mashing or holding the 'x' button.
  • Aim your option buddy by holding the 'z' button (pauses the game as you're aiming).
  • Destroy the big 'eye' cores to earn power-ups and get a better fighting chance against evil.
  • Wreck havoc, destroy as much as possible for extra points!
  • Watch your shields (bottom of the game window), if they get depleted it's "game over, man!"

This game was heavily influenced by the third level of R-Type. I still remember how it blew my mind when I first played it as a kid in the 80's arcades. Please enjoy and feedback is always appreciated. Cheers!



  • HUGE art upgrade with help from none other than "Mathieu ' @p01' Henri". He was kind enough to spend some time with the sprites in the game and I think it looks so much better now. Thanks a lot Mathieu!
  • Faded starfield when close to the upper and lower edges of the playfield, hopefully it helps with the boundary problems some people have experienced.
  • Other small bug fixes, polish and optimizations.


  • Work on the background "starfield": added vertical parallax for depth and added a menuitem to tone-down the amount of distracting "stars"
  • Fixed issues with the upgrades menu: animates into the scene and it should be better about grabbing inputs at the right time
  • Fixed issue where if the player presses back during the initial part of the game they never reach the grandmothership
  • Initial wave of enemy ships now take one hit to kill
  • When the ship is close to zero health, it starts spewing out more smoke particles.
P#89237 2021-03-19 23:12 ( Edited 2021-03-28 07:54)

:: Numzyx

fabulous game! i love scrolling shooters and i love levels where you maneuver around a giant mothership and it is very fun to fly around in your game and destroy everything in sight

P#89266 2021-03-20 15:21

Glad you enjoyed it, @Numzyx! I have an art update coming in very soon. Stay Tuned! :)

P#89522 2021-03-25 15:33

At first I thought the ship was severely under-powered, trying the below/above road, but once you start by the middle, and get a few powerups, you start to see what zones you can clear off without taking too much risks. In that sense, it has a real feel of exploration (R-typevania is a great way to put it).
Loved it, took about ~25 minutes to clear. It's really fantastic.

Background starfield was not an issue, except when there is hardly anything on screen: then, probably because of the concentration, I felt some motion sickness. If there are enough tokens, it could automatically reduce as you get further from the ship?

Small issue: the invisible walls can be disturbing, especially when enemies can fly way above the invisible limit. Maybe you could add some pixel dust to make it visible, or suggest that this is a wormhole boundary?

And a small bug report:
Runtime error line 1480 tab 0
Attempt to perform arithmetic on field 'sin' (a nil value)
(I got this while getting close to the upper invisible wall, otherwise I don't see anything to reproduce)

P#89666 2021-03-27 08:50

Amazing work. Gives me lots of ideas for a kosmoduck sequel.

I particularly love the ability to pause and aim, I wish more shooters had that.

P#89702 2021-03-28 18:07

@Woolion: Thanks for the detailed feedback and bug reports. I tried to handle those in my most recent update.

@Mikesta: Thanks, glad you enjoyed the game and inspired some ideas for your own game. Cheers!

P#89726 2021-03-29 19:58

Really enjoying this one. I'd like to see more "R-typevanias", as Woolion called it :)

I could see this as a candidate for a full (non-Pico) game, maybe with twin-stick controls for moving and aiming. Or aim with shoulder buttons, if you want to keep it a bit more challenging.

P#109867 2022-04-07 17:58

Good god this game slaps. This is EXACTLY the kind of fun assed game design I love the Pico-8 community for

P#109926 2022-04-08 19:34
:: kikito

I liked this! With the on-screen instructions alone it wasn't clear for me that the buddy could be moved around, I thought I could only aim left or right.

P#109932 2022-04-08 22:06

This feels like a bullet hell around the end there, super fun!

P#111996 2022-05-18 14:41

Such an addictive game. I have found myself humming the soundtrack during the day, and then coming back trying to beat the grandmothership.

P#117093 2022-09-08 22:40

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