24/4/2023 Multiplayer!

Changes include:

• Added two player mode.
• Shift main menu logo to the right just a tiny bit.
• Make wormhole sprite on main menu center properly and always render on screen.
• Make stars and wormhole on main menu avoid generating behind logo or menu items.
• Position of stars and wormhole on main menu randomized on each menu load.
• Tweak spaceship thruster trail spread.

Notes on two player mode:

• Player 1 is Green, Player 2 is Blue
• Player 2 uses the PICO-8's Player 2 controls.
• Player scores are tracked separately.
• Player scores are summed for the purpose of setting new high scores.
• The game ends when either player dies.
• Bullet explosions have the same iframes for the other player as they do the firing player.
• Players can collide; the faster player survives, the slower player explodes.