Rollermine
From Combine OverWiki, the Half-Life Wiki
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| Rollermine | |
|---|---|
| Production information | |
| Affiliation | |
| Manufacturer |
Combine |
| Type |
Proximity device |
| Technical specifications | |
| Damage |
10 |
| Ammunition Type |
Electric discharge |
| Rate of Fire |
Fast |
| Range |
Short |
| Usage | |
| Used by | |
| Game information | |
| Entity |
npc_rollermine |
The Rollermine is an electrically charged, spherical device slightly larger than a soccer ball that reacts to movement within a sizable radius.
Contents |
[edit] Overview
Rollermines are used as offensive and defensive traps by the Combine. As the name implies, they roll towards enemies and electrocute them via close-range electric shocks. Extensively used along the coastal roads, they are deployed from the air by Combine Dropships, in groups of two to four. Upon landing, the mines will remain inert or, if they land on softer terrain like soil or gravel, they will burrow themselves into the ground, remaining almost invisible. When an enemy target is detected, the roller mine will pop out of hiding and roll towards it in a relatively straight line.
The mines can magnetically cling to a target vehicle and interfere with the steering, forcing the driver to either stop or drive off the road. Besides the damage inflicted by any resulting car wreck, attached Rollermines do not directly injure the occupants of a vehicle. For this reason, Rollermines are usually deployed in tandem with Combine soldiers, who ambush the stranded individuals. Attached mines cannot be removed except through excessive force, chiefly the Gravity Gun; touching them will merely cause electrocution. They are also deployed in buildings and structures, taking any intruder by surprise. Rollermines can be destroyed with explosive devices, or alternatively may be picked up with the Gravity Gun and launched out of the way (or at enemies). Complete submersion in water also causes them to short-circuit and explode. Additionally, one can elude Rollermines by outrunning them, as they cease chasing once a target is too far away. If Rollermines are caught in an explosion, they bounce up and detonate.
In Episode One, Alyx reveals that she can use her EMP tool to reprogram a Rollermine's targeting system, making it "friendly". Once reprogrammed, Rollermines will emit an orange light instead of their signature blue and will follow the player slowly, attacking any Combine units it sees (including other Rollermines). Reprogramming Rollermines makes them unstable, however, and they will invariably emit red light and explode a few minutes later.
[edit] Behind the scenes
The Rollermine model seen in the Beta leak looked significantly different, bearing some resemblance to a sea mine and was more aggressive such as attacking the target constantly as the final version when it attacks it has to charge before attacking again.
[edit] Trivia
- It is possible to take Dog's ball or active rollermines though Ravenholm to Nova Prospekt, but invisible walls and glitches that have to do with friendly NPCs attacking it make it a very tough feat. Also there are environmental challenges such as the other rollermines, and having to go underwater. If you go down too deep, Dog's ball is destroyed. The upside of taking the ball with you is that it is easy to kill Antlion Guards and hostile antlions, headcrab zombies, and individual headcrabs. It also proves as a great distraction for Overwatch soilders by holding it with the gravity gun. It can be a distraction, a shield, and a projectile. It is also possible with Manhacks.
- Rollermines attach to your Dune Buggy and shock it. Strangely so will Dogs ball as if it was still active.
- If you do take Dogs ball through Ravenholm and through the mines there will be an invisible wall blocking the way to Shorepoint which will prohibit the rollermine's entry to Shorepoint. However, if you launch it with the Gravity Gun high enough it will go over the wall and you are able to enter the base and the later chapters. There will also be three or more invisible walls later on so keep doing this tactic until it works. At the end of Sandtraps just put the rollermine outside the entrance and the ceiling will crumble and block your from coming in but will allow the rollermine (deactivated or active) to enter, despite it supposing to be crush by the debris..
- Dog's ball will react to the G-man's presence outside Shorepoint but will do relatively nothing but follow him.
- If you get Dog's ball to N.L.O and place it in front of the Vortigaunt under one of the tables, he will randomly say all of their quotes for when he is done charging Gordon's suit.
- Take note that Dog uses an inert Rollermine as the ball during the game of fetch Gordon plays with him in the Black Mesa East scrapyard. If Dog's ball is not destroyed during the shelling of Black Mesa East, it is possible to carry it with the Gravity Gun all the way to the end of Nova Prospekt, though it needs to be thrown over a number of invisible walls along the way. In doing so, the ball can be used to distract zombies and antlions, who will attack it instead of Gordon, making them easy targets (The Rollermine can also "run over" most basic forms of headcrab, thus killing them).[1]
- There is a glitch, that when the player picks up a Rollermine with a Dark Energy Gravity Gun (Can only be acquired from using cheats to get the Dark Energy Gravity Gun), that causes the Rollermine to 'duplicate' (duplicate Rollermines don't work and have no collision), as well as not being able to pick up the Rollermine. The same glitch with the Dark Energy Gravity Gun also occurs with sentry turrets.
- There is another glitch involving Rollermines. If the player picks up a Rollermine with the Gravity Gun and launch it into the path of a Barnacle, it causes the game to crash. Valve have stated that it is impossible to do this without use of cheats or mods, so they will make no attempt to fix it.
[edit] Gallery
 The Rollermine original model (in activated position). |
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[edit] List of appearances
- Half-Life 2 (First appearance)
- Half-Life 2: Episode One
