Win the Arena Battle

Win the Arena Battle is a mission in Going Commando, taking place in the Maktar Resort, Maktar Nebula. After Abercrombie Fizzwidget told Ratchet that the Unknown Thief had been seen on the Maktar Resort, he showed Ratchet a commercial for the broadcasting of the Galactic Gladiators event taking place in the arena on the resort. Intrigued, Ratchet visited, believing the gladiators did not appear too challenging. Ratchet won the Electrolyzer after beating the challenge.

"Win the Arena Battle" is one of two missions available upon reaching the Maktar Resort, along with "Find a way to the Thugs-4-Less Jamming Array". During this mission, it is possible to earn the skill point "Clank needs a new pair of shoes", and one platinum bolt can be found along the path.

Walkthrough
After landing in the Maktar Resort, a ramp from where you ship lands leads down to a platform making up part of a walkway, with an immediate fork. After defeating the Thugs-4-Less brute and Megacorp Chickenbots (easily done with the Gravity Bomb or Chopper), take the left path for this mission, or the right path for "Find a way to the Thugs-4-Less Jamming Array". Which one you complete first is entirely up to you, but this mission is slightly easier and presents a good opportunity to earn bolts, upgrade weapons, and upgrade nanotech if you compete in the arena challenges. In the Megacorp vendor, no new weapons are available, and you likely still can't afford the Blitz Gun (but if you have not yet purchased the Chopper, now would be a good time).

Along the left path, you will find a series of slot machines, and at the end, more Thugs-4-Less brutes and Chickenbots. Take them out first with the Chopper, and then hit each of the slot machines with your wrench. The slot machines will either reward you with ammo on three ammo icons, bolts on three bolt cons, nanotech on three nanotech icons, a large sum of bolts on three bar icons, nothing if they do not land on three identical icons, or explode if they land on three explosive icons. After exploding, two Chickenbots will attack. Hit all of the slot machines repeatedly until each of them explode, or until you earn the skill point, as you will earn more bolts than you lose. Furthermore, the path is littered with lights and floating billboards, which can all be destroyed for bolts. After you've finished with the slot machines, head to the elevator. Destroy all the Chickenbots and brutes here, then head inside the space limo, which will take you to the next area.

Here, jump to grab on to the ledge (lit by red lights), and pull yourself across to the ladder upwards. When you get up, a dropship will land several more Thugs-4-Less brutes here in addition to a large horde of Chickenbots, stood on a gap across from you. The best thing to do is to stay at a range and use either the Chopper while strafing to just wipe them out before even crossing the gap, dodging the incoming fire. Cross the gap and a large group of brutes will be found across the next gap; eliminate them with the Chopper without crossing (there are a huge number). On the right platform with a crane, you can jump up to grab a platinum bolt before continuing. At the end of the path, use a wall jump to head up, by jumping to the wall on one side and bouncing across to the next, repeated until you reach the top. Head inside the building here, and use the Chopper to wipe out the enemies, and continue to try the slot machines until they explode or you earn the jackpot.

After this, a walkway path is the only thing in between you and the arena entrance. Defeat the Chickenbots with the Gravity Bomb, and then another Thugs-4-Less dropship will arrive. Defeat all of the brutes, refill your ammo at the Megacorp vendor, and then head into the arena. A cutscene will commence, and you will begin the Battle for the Electrolyzer.

Battle for the Electrolyzer
The Electrolyzer Challenge comprises six waves, and the enemies fought here are Megacorp gladiators, PX6 BladeBalls, Megacorp Security Robot I - Chainsaw Model, and Megacorp Security Robot II - Flamethrower Model. The latter three you will be familiar with, as they were fought in the first missions, while the Megacorp gladiator is similar, in that it is a close ranged enemy that attacks by throwing its chain-mace a short distance in front of it. These enemies can all be defeated relatively easily with the Chopper or Lancer. The best strategy against the enemies is to strafe a good distance from them and fire without coming into range. At times, this is not possible, if they swarm you and many come into close range at once, at which point simply use the Gravity Bomb. In some rounds, the arena's hazards will activate, comprising of spinning blades and a flame attack from the ground; these must all be dodged.

The first round comprises only a group of gladiators, which are defeated by keeping your distance and firing. The next round is similar, though you will this time be faced with chainsaw MSRs; defeat them by keeping your distance and firing while strafing. On the third round, you will be swarmed by BladeBalls; use the Gravity Bomb to take them out, and the Chopper against any stragglers. The fourth round is a larger wave of gladiators, in which the Gravity Bomb may be most effective as it can take out a cluster at once. The flame hazards will activate, but these flames are telegraphed by two flashing blue lights from the ground before the flame appears, so you will know when to avoid them. On the fifth round, a large wave of flamethrower MSRs will appear and the blade hazards in the ground will activate; jump over to dodge them, and use the Chopper to take out the MSRs, keeping your distance. The final wave is a mix of BladeBalls, chainsaw MSRs, and gladiators, which are best eliminated with the Chopper.

After this, you will earn the Electrolyzer. It would be wise to continue completing as many arena battles as you can to earn bolts, which will be useful later on. The arena is also a great way to upgrade your weapons. Complete more challenges (see here for a guide) until you find them too difficult, at which point, leave the arena, and the short mission "Repair the energy bridges" will commence.