Greetings! I asked this over in the Steam forum, but got FLAK for asking about singleplayer cheat codes or a developers console where I could mess around in the game.

So... are there any?

There are...
They've been discussed at the overload forum, but I don't actually know what they are.

Thanks!

Over on Steam, Revival dev stated that some people have figured out the cheat codes but none of them have posted about it yet. He also stated he thinks they are planning on adding even more in. Also he stated that the strategy guide, that is being made for the backers who got the relevant reward for it, will have the cheat codes listed in them as well.

So for now they are keeping it under wraps and letting the community find them out themselves and letting them post about it when they find them, till the strategy guide releases, then you know the codes will be released to everyone, I know I'll post them on GoG and Steam when I get the Strategy guide.

inferno - Invulnerability.
entropy - Gives all weapons (also fills all secondary ammos).
blackdog - Fills the armor, energy and ammo.
fernandos - Gives all security keys.
triggered - Unlimited ammo and energy.
weapon - Switches the "++ upgrade" of the selected primary weapon.
missile - Switches the "++ upgrade" of the selected secondary weapon.
astral - Noclip: disable collision with walls and items.
buffet - Adds 50 upgrade points of both types.
kofusion - Makes the weapons more powerful.
boombots - All explosions are wider and stronger.
inflation - Balloon mode: Auto ops get bigger as they get damaged.
blaze - Faster movement speed.
smashy - More powerful smash attack.
politely - Auto ops's rate of fire are slower.
molasses - Auto ops's movement speed are slower.
biggrove - Player's armor regenerate up to 100 after not being hit for 5 seconds.
tuberacer - Forces the player to move forward (still can move backward).
myonlyhope - Enables the usage of the holo-guide in New Game +.
quartzon - Slow motion mode.