CORE by StudioRightside
Can you survive for 7 minutes!?
Let us know how long you survived in the comments.
A: walk left
D: walk right
W: fly with jetpack
Left Mouse: aim & shoot
Right Mouse or Space Bar: switch ammo
Play CORE! (HTML5)

You play as an astronaut who survived a crashlanding on a lush alien world. In this 2D bullet hell platformer your weapon is powered by an unstable core. Can you survive for 7 minutes!?
Features:
:zap: 3 energy states (randomly generated)
:gun: 5 types of ammo
:alien: 5 types of alien enemies
:smiling_imp: 7 minutes of bullet hell
:rocket: Jetpack flying
Our Story
:wave: Hi, we are Bob Huijbregts (Development) & Maarten van Broekhoven (Game Design & Art). Two devs and dads who have far to little time for game jams. We made this game in only 3 (late) evenings! It's not perfect by a long shot, but still we are glad to have joined Ludum Dare 49!!
This is the first sketch of the game idea:

And this is how it turned out:

Audio
Sound Effects are all found on artlist.io and slightly modified to fit the game. The radio messages are recorded by Maarten. We opted-out of the audio rating because the radio messages are the only sounds we recorded ourselves.
:raised_hands: Thank you for playing, rating and commenting!
| Link | https://core-game.netlify.app/ |
| Original URL | https://ldjam.com/events/ludum-dare/49/core-1 |
Ratings
| Overall | 104th | 4.105⭐ | 40🧑⚖️ |
| Fun | 184th | 3.947⭐ | 40🧑⚖️ |
| Innovation | 1045th | 3.026⭐ | 40🧑⚖️ |
| Theme | 798th | 3.487⭐ | 40🧑⚖️ |
| Graphics | 150th | 4.372⭐ | 41🧑⚖️ |
| Mood | 73th | 4.218⭐ | 41🧑⚖️ |
| Given | 39🗳️ | 53🗨️ |
One nit-pick I'd have is, that I'm personally not a big fan of the shots having both random scatter AND limited ammo.
One quick note: You should classify the Link as HTML5 instead of "source code". I nearly skipped that one, because I didn't feel like building it myself :D
Thanx for playing.
Audio is also nice and satisfying.
I'd say the ammo mechanic incentivises gameplay were you want to avoid enemies more than attack them, so a dodge/dash would be nice.
Also the camera movement is disorienting, if that camera movement and camera shake can be reduced a bit it'll be friendlier to more players.
I finally had the time to come back and rate everything I played so far!
Here is a link to the vod of the review if you wish to see it again: https://www.youtube.be/watch?v=h15d_WbzH64&t=14526s