Red Brick Fire Balls Over High Barriers

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Post by Erockbrox on Sat 27 Jul 2013 - 3:49

Okay, I think I'm going to let one cat out of the bag here.

So a while ago I was making some puzzles for Quest for Calatia and I used to always just think that the red fireballs that come from the red brick couldn't go over any of the high barriers in the game.

As far as I know, there are low barriers, which allow projectiles to pass over them and high barriers, which do not allow projectiles to pass over them.

So normally anything that is a high barrier will not allow a projectiles to pass over/though it. If you make a red brick and destroy it while its on the floor then anything with a high barrier will block the shot, but there is one special case when a shot will go though.

If you take a red brick and then pick it up and then throw it at a horizontal high barrier and then destroy it in mid air then it WILL pass though! And this is the only case where this happens. If you try it on a vertical high wall it doesn't work.

So what does this mean, it means that I could possibly break a puzzle of yours or get to places in your dungeons that you didn't intend for me to get to by exploiting this. Like in the following picture that I sent to Gamemakr explaining this to him. If you think that this pegswitch was protected then think again. So everyone here should keep this in mind when designing.


Red Brick Fire Balls Over High Barriers Pbucket


The reason why I'm posting this here is because it might be useful to make a ASM hack which "fixes" this or doesn't allow this to happen for reasons that I stated above.
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Post by Conn on Sat 27 Jul 2013 - 4:38

This really is an interesting finding!
However, I must admit that I have no clue how to hack it that the brick shot won't get over the barrier. My best guess is that you'd have to code all the barriers to reject the brick at a former state (x/y) coordinates, but coding anything here would most likely result in a mess (at least if I'd go for this). The best to avoid is to (1) make a double barrier or (2) avoid horicontal access:

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Post by Erockbrox on Sat 27 Jul 2013 - 6:54

Thank you for the insight Puzzledude, your explanation makes perfect sense.



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Post by wizzrobemaster on Sat 25 Nov 2017 - 8:09

because of this limitation, is this the same reason as to why it is possible to kill Ganon without the silver arrows?

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