Unwelcome Home

Unwelcome Home is the thirty-second level in Metal Arms. After successfully escaping Mil City, Dr. Exavolt is greeted by Colonel Alloy, to whom begins asking the Dr. about ways to possibly defeat Corrosive. However, the Dr. suddenly turns on the Droids, opening up communications with the General himself, immediately causing the second attack on Droid Town. Glitch must aid the Droids in the defence, and stop all Mils attacking the innocents.

Trivia
• After Dr. Exavolt reveals his betrayal, he is still dipicted as being present in the commands center, alongside Alloy, Glitch and the two generic Droids (as his arm remains in sight, just at the edge of the screen). It's clear that he was intended to have fled the command center, but it wasn't fully translated on-screen.

• This level plays out in the same manner as Clean Up, with various differences to note.

• The level is set during the night hours instead of mid-day.

• Rather than SPEW wielding Grunts, the enemies that spawn in every sector is a mix of Troopers and Elite Guards.

• The Droid motorpool, as well as the third sector are completely absent. The garage is entirely inaccessible and the tunnel leading to the third area is blocked by a faded black wall, like the other tunnels around the map.

• The Mil attack in the second area is one large battle, rather than the two individual attacks that start at one end and end at the other.

• Instead of dealing with a third area, the last battle takes place where the first attack originally started.

• Two Droids with Rocket Launchers respawn and follow Glitch around this level (reduces to one once the final attack occurs) as opposed to four Droids with Mining Lasers.

• Five additional Droids with SPEWs, one with a Rocket Launcher and one with a Mining Laser are unique in this level, as they don't get replaced once they're destroyed. Three of the SPEW wielding Droids man turrets, whilst the other two act like normal droids; one of which is stationary in front of the command center and the other spawns in the second area  along with the third Rocket Launcher wielding Droid. The Mining Laser Droid is stationed near the Droid fountain.

• The Guards in this level seem much less durable than they were in most of the previous levels. Giving their dominating presence in this level, it's safe to say this was to maintain balance.

• This level strongly resembles the main menu of the game, using the same style, location and music.

• The ending cutscene dipicts Glitch with a level 1 SPEW, regardless of what version he actually has in his inventory.

• The Trooper that takes Glitch down in the cutscene dawns animalistic mannerisms and growls, which is unheard off outside of this particular scene. All Troopers up until this point have been dipicted as having sentience and sound particularly intellectual. This may be the remnants of an original concept for how the Trooper was dipicted initially until a later point in the game's development.