Gateway Jump is a platformer with a gun which opens gateways. It is based on the Mari0 game developed by Stabyourself.net. That game combined Super Mario Brothers and Portal. The game assets were mostly taken from Super Mario Brothers. Gateway Jump has been replacing all the assets to make it easier to legally distribute the game.
Levels: Not Started
Graphics: Complete
Sounds: Complete
Runs on LÖVE 11.2.
Mostly: MIT License
Most things not Portal related or from Super Mario Brothers or listed below were created by Dennis Payne.
Mushrooms, star, coin, coinblockanimation, coinblock and plant graphics
Mario-like stuff by Kelvin Shadewing (http://kelvinshadewing.net)
https://opengameart.org/content/mario-like-stuff
License: CC-BY-SA 4.0
Goomba, Peach, and mushroom on flag
Modified from Super-Guido by Kelvin Shadewing (http://kelvinshadewing.net)
https://opengameart.org/content/super-guido
License: CC-BY-SA 4.0
Bullet Bill
Modified from Cannon Bob by Kelvin Shadewing (http://kelvinshadewing.net)
https://opengameart.org/content/cannon-bob
License: CC-BY-SA 4.0
Pipes
16 Bit Pipes by Kelvin Shadewing (http://kelvinshadewing.net)
https://opengameart.org/content/16-bit-pipes
License: CC-BY-SA 4.0
Koopa, Red Koopa, Spikey, vines and bonus platform
Modified from Monsterboy in Wonder World mockup assets by surt
https://opengameart.org/content/monsterboy-in-wonder-world-mockup-assets
License: CC-BY-SA 3.0
Squid
Modified from Random Ocean Creatures by RAPIDPUNCHES
https://opengameart.org/content/random-ocean-creatures
License: CC-BY-SA 3.0
Castle bricks, castle inside bricks and block debris
Modified from RPG Tile Set 'Military Base' NES by Chasersgaming (https://chasersgaming.itch.io/)
https://opengameart.org/content/rpg-tile-set-military-base-nes
License: CC0
Clouds
Modified from Clouds and Gust by Urie W.
https://opengameart.org/content/clouds-and-gust
License: CC-BY-SA 3.0
Tree tops
Modified from Tiny Tree by Mirofox
https://opengameart.org/content/tiny-tree
License: CC0
White and green platforms
Modified from Snow Tiles by Kelvin Shadewing (http://kelvinshadewing.net)
https://opengameart.org/content/snow-tiles-0
License: CC-BY-SA 3.0
Block
Modified from Square Block Textures by etqws3
https://opengameart.org/content/square-block-textures
License: CC0
Underwater block and coral
Modified from Monkey Lad in Magical Planet by surt
https://opengameart.org/content/monkey-lad-in-magical-planet
License: CC0
Small and big mario
Modified from Super Miyamoto by Lars Doucet & Sean Choate
https://opengameart.org/content/super-miyamoto
License: CC-BY 3.0
Cloud, water and lava blocks and Lakito
Modified from Super Miyamoto Land Tilesets by Lars Doucet, Sean Choate, and Megan Bednarz
https://opengameart.org/content/super-miyamoto-land-tilesets
License: CC-BY 3.0
Fire Flower
Modified from bubbling potion bottle by serenajeanne
https://opengameart.org/content/bubbling-potion-bottle
License: CC-BY-SA 3.0
Fireball
Modified from Firebal 32x32 by MSavioti
https://opengameart.org/content/firebal-32x32
License: CC0
Toad
Modified from Mushroom, Dude by sparrow666
https://opengameart.org/content/mushroom-dude
License: CC0
Upfire
Modified from Fire by Spring Spring
https://opengameart.org/content/fire-0
License: CC0
Fire
Modified from Animated Fires by stealthix
https://opengameart.org/content/animated-fires
License: CC0
overworld.ogg and overworld-fast.ogg (MainTheme.wav)
underwater.ogg and underwater-fast.ogg (SwingingLevel.wav)
underground.ogg and underground-fast.ogg (8BitMetal.wav)
castle.ogg and castle-fast.ogg (SeriousCutScene.wav)
levelend.ogg (VictoryMusic.wav)
Hungry Dino (9 chiptune tracks, 10 SFX) by SketchyLogic
https://opengameart.org/content/hungry-dino-9-chiptune-tracks-10-sfx
License: CC-BY 3.0
stomp.ogg (flyswatter.wav)
Fly Swatter Squish sound by qubodup
https://opengameart.org/content/fly-swatter-squish-sound
License: CC0
starmusic.ogg and starmusic-fast.ogg
At The Starting Line by Snabisch
https://opengameart.org/content/at-the-starting-line
License: CC-BY 3.0
coin.ogg
vine.ogg (plant_growth.ogg)
jump.ogg and jumpbig.ogg (jump.ogg)
swim.ogg (splash.ogg)
pause.ogg (cut.ogg)
shrink.ogg (hurt.ogg)
mushroomeat.ogg (achieved.ogg)
lowtime.ogg (nearly_dead.ogg)
fireball.ogg (hit.ogg)
boom.ogg (bomb.ogg)
mushroomappear.ogg (magic.ogg)
oneup.ogg (secret.ogg)
pipe.ogg (stairs_down.ogg)
NES Sounds by Baŝto
https://opengameart.org/content/nes-sounds
License: CC0
gameover.ogg
Modified from Game Over 8bit music by 3DPyramid
https://opengameart.org/content/game-over-8bit-music
License: CC0
blockbreak.ogg
Modified from Sledgehammer - using to break a block of concrete. by Soundsnap
https://opengameart.org/content/sledgehammer-using-to-break-a-block-of-concrete
License: GPL 3.0
blockhit.ogg
Modified from Plastic on bongos by remaxim
https://opengameart.org/content/plastic-bongos
License: CC-BY-SA 3.0
death.ogg
Modified from retro dead/destroyed/damaged sound by Prinsu-Kun
https://opengameart.org/content/retro-deaddestroyeddamaged-sound
License: CC0
bowserfall.ogg (mnstr9.wav)
bridgebreak.ogg (interface6.wav)
shot.ogg (interface4.wav)
konami.ogg (spell.wav)
RPG Sound Pack by artisticdude
https://opengameart.org/content/rpg-sound-pack
License: CC0
castleend.ogg
Victory! Composed by: Jon K. Fite
https://opengameart.org/content/victory-2
License: CC-BY 3.0
intermission.ogg
Fun Adventure by HitCtrl
https://opengameart.org/content/fun-adventure
License: CC-BY 3.0
scorering.ogg (GUI Sound Effects_031.wav)
GUI Sound Effects #4 by Jesús Lastra
https://opengameart.org/content/gui-sound-effects-4
License: CC-BY 3.0
princessmusic.ogg
End Credits Theme Music by Cleyton Kauffman - https://soundcloud.com/cleytonkauffman
https://opengameart.org/content/end-credits-theme
License: CC-BY-SA 3.0
bulletbill.ogg
Cannon fire by Thimras
https://opengameart.org/content/cannon-fire
License: CC0
fire.ogg
Spell 4 (fire) by Bart K.
https://opengameart.org/content/spell-4-fire
License: CC-BY 3.0
portalenter.ogg (teleport.ogg)
portalfizzle.ogg (disenchant.ogg)
portal1open.ogg and portal2open.ogg (warp3.ogg)
Spell Sounds Starter Pack by p0ss
https://opengameart.org/content/spell-sounds-starter-pack
License: CC-BY-SA 3.0