I Investigated Pokemon's Acid Rain Glitch. It's Stranger Than You Think.

0:00 Introduction
1:01 What is Acid Rain
5:40 Acid Rain in Competitive Pokemon
6:54 Beating Red with Acid Rain

[ussgordoncaptain]

acid rain single handedly made latias much worse on wifi compared to Shoddy. There were entire teams devoted to Acid rain on wifi.

[Carbonific]

6:28 - It's worth noting that Tyranitar wasn't legal in VGC 2008/2009 because Pokemon weren't auto-leveled down to 50 and Tyranitar evolves from Pupitar at level 55.

[Deedj]

I’m just surprised how easy Acid Rain is to trigger. You would think it would be some niche, specific combination of events but field move + pursuit is all it takes. That’s a crazy oversight, especially since the first games with the gen 4 engine, Diamond and Pearl, don’t have this issue.

[samwill]

In case we thought Gen 1 was the only Pokemon generation held together with duct tape and spit

[Dionaea_floridensis]

Acid Rain would be a really cool weather effect for Poison types. It could boost the power of their moves and weaken Fairy moves, maybe also healing poison types per turn

[jaxpool]

Heya, I was one of the people helping test Acid Rain back in the day. I encountered it first in Platinum when the game triggered it on its own in the Multi Battle with the Galactic Grunts in Veilstone. The Grunt's Croagunk used Pursuit to KO Lucas' Clefairy that just used Gravity. With Gravity in effect, non-weather effects would happen too, like Uproar.

I wasn't on the Smogon forums, but I was on GameFAQs and did a couple WiFi battles with someone who was to figure out what field effects were in play. We found that Trick Room led to EVERY field and weather effect to happen simultaneously, and these effects were affected by moves such as Defog.

The original video my testing partner posted was auto-privated by Youtube since it was around a decade old, but I found that my copy of Platium still had the battle videos saved to the Pal Pad, and I took a recording with my phone. It's on my channel, if you wanna see some of the early research!

[yoshifnk]

I think the reason why it says you're damaged by your ability might be to do with a check for solar power / dry skin.

[paddyward]

Kudos. You experimented with and shared everything you could to a level higher than anyone has done before with acid rain. This is the quality content I come here for.

[RickRaptor]

This video is interesting because I always assumed Acid Rain just meant all four weather effects simultaneously. I didn't know the glitch causes all four weathers to deal damage or that it triggers Rain Dish four times.

[NataliaNeeSama]

"Weavile is hurt by it's Pressure" so relatable!

[derfret]

If i had a nickel for every ability that allows Glalie to be broken with Sub+Protect I'd have two nickels. Which isn's a lot but it's weird that it happened twice

[rolandmcrae]

This is the kind of arcane knowledge I love on YouTube. It's an exercise in lateral thinking, thinking of every possible way to set up this glitch. I think that curiosity is important in competitive games

[rjsanchez]

Didn't know this glitch existed until Barry's Floatzel triggered it during the Spear Pillar double battle in my Platinum Nuzlocke. I remember being weirded out by the glitch I restarted the game 😅

[Mattquaza]

Damn didn't Weedle just post a vid on this? Glad to see this subject getting some light

[SpyroFan]

This happened to me once. I had no idea what was going on, and it freaked me out. I was afraid I’d broken the game. It’s nice to finally have an explanation.

[randomderp]

Acid rain is definitely one of the more interesting glitches in Gen 4, glad to see it getting all of this coverage lately

Gamefreak please make an actual acid rain field effect in gen 10 thanks

[ohmnabar]

this glitch is interesting because as far as I can tell, there's no documentation surrounding what the actual bug in the code is that allows it to occur, unlike many other pokemon glitches. wonder if anyone could do a deep dive on that or if it's impossible to figure out

[GalarianGuy]

I wonder how an Swinub's line react to it since they're immune to the two damaging weathers 🤔

[enricobreveglieri]

I lost you between the third "damage" and the fifth "weather"

[Darkluster]

Even without Moody, Glalie finds a way.