Kudos
here's a bit of suggestion that could be added:
Moving lasers, a mirror that could reflect and deflect lasers to anywhere, a mirror-bot which is a moving mirror and uses lasers as advantages.
Abilities
Well my suggestion is having abilities, like you can do triple shot, or circular swing with your sword. You can only pick 1 or 2 of these abilities per weapon. also uses bars of energy, depends on the ability.
Sword:
360 Degree Swing: I find this one fun actually, you know the part where you go slow motion if you kill the last bot? you can do a full spin and hit the enemy twice, and I've been doing that a bunch of times and it's fun slicing them to pieces. 2 energy needed
Great Slash: Better vertical slash, making them unbalanced while also a chance to trip them to the floor. 1 energy needed
Thrust: You charge and you thrust forward with great speed, yeah. 1.5 energy needed
Bow:
Double Shot: fires 2 arrows at once. you can choose what pattern, like V or II. maybe more pattern, 1.5 Energy
That's all I have for the bow, maybe split shot, but too op I guess, (basically it splits into 2 smaller arrows as it hits an enemy)
Hammer:
Smash: Jumps and then smashes the ground with great power, to create a small shock wave that stuns enemies. 2 Energy
Swing: Charges the hammer to swing it with power, you move slowly, consumes 20% more compared to jetpack.
that's it for hammer, ran out of Ideas for bow and hammer.
Repair Bot:
Repair bot repairs the parts you lost, so I don't have to exit the game and come back just to fully repair myself because I lost a leg or an arm.
Well this bug or glitch makes you fast: (only works with Hammer and Sword)
Notice how you move a bit forward with the kick? well here's a bug related to speed
Rapidly right click,
While you right click, switch to another weapon, then switch to another weapon as fast as possible
while still kicking.
All of these should happen at the same time, and there you go, you also kick them if they're in the way
Since we got Fire, why not add one more?
Sword: it will shock the enemy, stunning them, if an enemy comes close to them, they will also be shocked.
Bow and Arrow: Lightning Chain, will go for the closest enemy and shock them, then jumping to another enemy and so on and so forth.
Hammer: When hitting the ground, it will do a small shock wave on the floor, like this. shocks the enemy as it goes, the shock lasts longer if they were closer to the wave
/~~~\
( (x) )
\~~~/
they are separated, but if you put them close together, you'll see the point