For Prison City players, this guide will show you how to find all permanent health and weapon upgrades scattered throughout the levels. Let’s find out.
Rooftops
The first health upgrade you will come across is pretty easy to find. Just go down the ladder below…

…and you’ll see it on that small ledge.
Freeway
To find
the first weapon upgrade, you’ll need to destroy a large mech to collapse the bridge, then you’ll have to pull off a slide jump towards that platform and go down.

The rest is pretty straightforward. Be careful not to fall, or you’ll have to do another slide jump!
Stadium
The second health upgrade is a bit difficult to get on
Modern and
Classic difficulties. I advise you to bring a grenade along. You’ll have to make your way here and destroy the wall behind that guy you see across.

Then use the grenade to finish off two ball-throwing, sports-loving nuisances and after doing some wall-clinging, your reward will be waiting for you.
Cold Storage
The second weapon upgrade is a bit tricky to get. Jump straight down from here and hold the left input.
If you did it right, you’ll end up here.

What awaits you ahead is a simple platforming section. Nothing too fancy.

Sewers
The third health upgrade is a sneaky one. You’ll eventually end up here and see that pipe over there? You gotta pull a Mario stunt to reach your reward.
Jackpot!

Power Plant
Alright,
the third weapon upgrade plays a bit hard to get. Take a good look at this switch. It needs to be turned
OFF!
“But why?” you ask? You don’t want to turn into a fried chicken on your way to MORE POWER, do you? Entrance to this section is located below the boss room, by the way.

There. It doesn’t look so big from where you’re standing, right?

Factory
The final health upgrade is quite easy to get. See that fence up there? Wait for a big crate or an explosive barrel to reach there.
After burning some calories on a treadmill, grab that hot dog and go back because you’re going to burn the extra ones you just gained!

Preserve
What’s that?
The final weapon upgrade? Oh yeah, break those crates and slide into that opening.
After a tight platforming section, your power shall be absolute!

And that wraps up our share on Prison City: All Health & Weapon Upgrade Locations. If you have any additional insights or tips to contribute, don’t hesitate to drop a comment below. For a more in-depth read, you can refer to the original article here by Yaerveth, who deserves all the credit. Happy gaming!