Help in GameMaker

Question for the Game Jam(1/2):

For Co-op, The technical guide states "[your game] should be entirely playable on the keyboard and not require a gamepad to be connected". Does this mean we cannot use the mouse for any in game inputs?

I have a question, the player has to be an UFO or it can be a human and the enemy an UFO?

I have a question if I win the money, can it go to my paypal?

Hey, I'm looking for some teammates who knows about coding and stuff, its just me for the moment and i'm not very good at making games so if you wanna make a team with me DM me on discord ShrunkPoem40594#9766

What category should the game be?

Hey, I'm looking for some teammates who knows about coding and stuff, we are 2 for the moment and not very good at making games so if you wanna make a team with us DM me on discord ferna#2998

Hi guys im trying to make like an infinite room. What i want is that the principal character does not move and all the other stuffs just move like the player is moving. U get me? like the Dinosaur Game, idk how to doit helme

Hey I'm looking for teammates for the GX jam because I'm not sure I will make it far alone and I need help, reply here or DM me on Discord @Spidey #2021 if you're interested! I need help making a 2d Runner game!! I have a really cool idea for it!

I want to have an two objects, in start event I declare health = 10;

In other script if I modify health it affects all objects??
How do I access first object and second...
GMS2 is so confusing, it seems object aren't really objects lol

Ok so 1, does the opera gx jam require a certain aspect ratio for gms2 rooms? and 2, does it require a certain framerate?