Sm4sh teleporting via input command script

script_11.c

// in script_11, see accompanying asm example to see where loc_9 is
// this contains all the code between loc_9 and loc_A in that
void loc_9()
{
    global18 = sys_18(1);

    // If this is a new frame, i.e. currentFrame globalvar isn't current
    if(global14 != sys_13(1))
    {
        if(global26 & 0x4 /*If B is pressed*/ || sys_e(10002, 1) /*Or if B is held*/)
        { 
            // set current position
            sys_14( 0x3,
                    sys_1b(1), // Get center stage X (would get ledge position X if the ledge collision existed) 
                    sys_1b(2) + 5f, // Get center stage Y (same as above)
                    sys_1b(0xc)); // Get current player Z
        }
    }
}

script_11.mscscript

        begin 0x0, 0x0
        pushInt. 0x1
        sys. 0x1, 0x30
        pushInt. 0x0
        equals.
        if loc_7
        pushVar. 0x1, 0x8
        pushInt. 0x0
        equals.
        if loc_1
        pushVar. 0x1, 0x9
        pushInt. 0x49742400
        floatLess.
        if loc_1
        pushInt. 0x1
        else loc_2

loc_1:
        pushInt. 0x0

loc_2:
        if loc_5
        pushInt. 0x2
        sys. 0x1, 0x49
        pushInt. 0x1
        equals.
        if loc_3
        pushInt. 0x0
        sys. 0x1, 0x4c
        float+= 0x1, 0x9
        pushInt. 0x1
        setVar 0x1, 0x3
        else loc_4

loc_3:
        pushVar. 0x1, 0xa
        pushInt. 0x3f800000
        addf.
        floatVarSet 0x1, 0x9
        pushVar. 0x1, 0x9
        floatVarSet 0x1, 0xa
        pushInt. 0x0
        setVar 0x1, 0x3

loc_4:
        else loc_6

loc_5:
        pushInt. 0x2
        sys. 0x1, 0x49
        setVar 0x1, 0x3

loc_6:
        else loc_8

loc_7:
        pushInt. 0x1
        setVar 0x1, 0x3

loc_8:
        pushVar. 0x1, 0xe
        pushInt. 0x0
        notEqual.
        if loc_9
        unk_2E loc_9
        pushVar. 0x1, 0xe
        callFunc 0x0

loc_9:
        pushInt. 0x1
        sys. 0x1, 0x18
        setVar 0x1, 0x12
          
        # this is the perfect spot to have anything done once a frame
        pushInt. 0x1
        sys. 0x1, 0x13
        pushVar. 0x1, 0x14
        notEquals.
        if newFrame
            pushVar. 0x1, 0x26
            pushInt. 0x4
            bitAnd. # B is pressed
            pushInt. 0x2712
            pushInt. 0x1
            sys. 0x2, 0xe # B is held
            bitOr.
            if BPressedOrHeld
                pushInt. 0x3
                
                pushInt. 0x1
                sys. 0x1, 0x1b # get X ledge position (instead gets centerstage pos)
                pushInt. 0x2
                sys. 0x1, 0x1b # get Y ledge position
                pushInt. 5.0f
                addf. # ledge Y + 5
                pushInt. 0xc
                sys. 0x1, 0x1b # get current Z position
                
                sys 0x4, 0x14 # set absolute position
            BPressedOrHeld:
        newFrame:

        pushInt. 0x1
        sys. 0x1, 0x13 #"push animation frame"
        floatVarSet 0x1, 0x14
        pushVar. 0x1, 0x2
        pushInt. 0x0
        notEqual.
        if loc_B
        unk_2E loc_A
        pushVar. 0x1, 0x2
        callFunc 0x0

loc_A:
        pushInt. 0x0
        setVar 0x1, 0x2

loc_B:
        pushVar. 0x1, 0x3
        not.
        if loc_D
        pushVar. 0x1, 0xf
        pushInt. 0x0
        notEqual.
        if loc_C
        unk_2E loc_C
        pushVar. 0x1, 0xf
        callFunc 0x0

loc_C:
        pushVar. 0x1, 0x10
        pushInt. 0x0
        notEqual.
        if loc_D
        unk_2E loc_D
        pushVar. 0x1, 0x10
        callFunc 0x0

loc_D:
        pushInt. 0x0
        setVar 0x1, 0x8
        end

https://gfycat.com/ShoddyTanFairyfly What it looks like in-game. It's a bit janky of course, but if the conditions are changed (for example, only upon pressing B), it would look much more natural.