SSBB unbreakable Rolling Crate Gecko Code

Warning
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Possibly imcompatible with some stages or modified stage modules.
idk.
🤖<Use this at your own risk.

Gecko Code
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Unbreakable(not completely) rolling crate [nisetynet]
C29bdeb4 00000007
3821fffc 90610000
80650008 806308c0
2c03000a 40820010
3c600000 60630000
90660028 80610000
38210004 7c992378
60000000 00000000

Assembly Source Code, Implementation
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Probably, by following BaseItem or itCustomizer vtables, I could make it completely unbreakable but I can’t devote time to this.

Thanks to
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🔗Sammi-Husky for hosting shared ghidra project.
All brawl researchers.

Source Code
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Target function.(Inserts at 0x809bdeb4)

void damageItem/[itDamageTransactorImpl]/(it_damage_transactor_impl.o)
               (undefined4 param_1,undefined4 param_2,soModuleAccesser *param_3,int param_4,
               int param_5)

For example, lwz 3, 0x8(5) is equivalent to lwz r3, 0x8(r5).
llvm-mc does not allow the later syntax.

echo '
.section .text
.globl _start
_start:
    ## save registers to prevent crash
    subi 1, 1, 0x4 ## push r3
    stw 3, 0(1)
    lwz 3, 0x8(5) ## get BaseItem
    lwz 3, 0x8c0(3) ## load BaseItem::itKind
    cmpi 0, 0, 3, 0xa ## if rolling crate?
    bne 0x10 ## if not -> _end
_zerodamage:
    ## patch damage
    lis 3, 0x0000
    ori 3, 3, 0x0000
    stw 3, 0x28(6) ## update damage with 0.0
_end:
    ## restore registers
    lwz 3, 0(1)      ## pop r3
    addi 1, 1, 0x4
    ## replaced instruction
    or 25,4,4
' | llvm-mc -triple=powerpc-unknown-linux-gnu -show-encoding

llvm-mc Output
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        .text

        .globl  _start
_start:
        addi 1, 1, -4                           # encoding: [0x38,0x21,0xff,0xfc]
        stw 3, 0(1)                             # encoding: [0x90,0x61,0x00,0x00]
        lwz 3, 8(5)                             # encoding: [0x80,0x65,0x00,0x08]
        lwz 3, 2240(3)                          # encoding: [0x80,0x63,0x08,0xc0]
        cmpwi   3, 10                           # encoding: [0x2c,0x03,0x00,0x0a]
        bne     0, .+16                         # encoding: [0x40,0x82,0x00,0x10]
_zerodamage:
        lis     3, 0                            # encoding: [0x3c,0x60,0x00,0x00]
        ori 3, 3, 0                             # encoding: [0x60,0x63,0x00,0x00]
        stw 3, 40(6)                            # encoding: [0x90,0x66,0x00,0x28]
_end:
        lwz 3, 0(1)                             # encoding: [0x80,0x61,0x00,0x00]
        addi 1, 1, 4                            # encoding: [0x38,0x21,0x00,0x04]
        mr      25, 4                           # encoding: [0x7c,0x99,0x23,0x78]