JPEXS Modding Guide

Prerequisites

• Install Andre-Jar's Emulator locally
• Install a Flash decompiler (recommended: JPEXS)
• Understand decompilation and pseudo-code
• Download Stick Arena SWF file (558 version used here)
• Install one or more of:
  • Flash Emulator (e.g. Ruffle)
  • Archived Flash Player app
  • Flash-compatible browser (e.g. FlashBrowser)

Changing Color Palette [easy]

Prereqs: JPEXS

1. Navigate to: /sprites/DefineSprite (5215)
2. Expand the folder and frame 1. Find PlaceObjectX (XXXX)
3. Navigate to: /shapes/DefineShape(XXXX) or click the number under "Needed Characters"
4. Right-click DefineShape and choose Replace. Upload a color palette PNG (e.g., from Google Images)

Changing Character's Head Color [medium]

Prereqs: JPEXS, Text Editor for SVG

1. Navigate to /sprites/DefineSprite (974) or (1007) in version 588
2. Expand frame 1 and find PlaceObject2 (7914)
3. Go to /shapes/DefineShapeX (7914)
4. Right-click → Export selection → Save as SVG
5. Open SVG in a text editor. Find and replace HEX values (e.g., #000000 → #0066CC)
6. Return to DefineShape (7914) → Right-click → Replace → Upload modified SVG
7. (Optional) Repeat for sprite 301

I made mine Spongebob. This requires a custom SVG.

Customizing the Crosshair

Challenge: Customize your crosshair. Try it on your own first!

1. Find the crosshair sprite in JPEXS and double-click it.
2. Expand DefineSprite and frame 1. Find PlaceObject2.
3. Click PlaceObject2 and then the number listed under "Needed Characters".
4. You can now either:
   • Replace the entire crosshair with a new image
   • Change its colors manually
   
5. Edit Color: Click Edit on the bottom, to the right of Transform.
6. Expand shapes → fillStyles.
7. Keep expanding until you see RGB values. Click the RGB palette, change the colors, then click Save.
8. This is an example using the XGen logo — black was replaced with green and blue with red after clicking Save.
9. Alternative: Replace with PNG
   After clicking the Needed Characters number, right-click the folder for DefineShape and choose Replace.
10. Upload a PNG wherever you saved it.

Now that you're done, check out the advanced guide: Advanced Modding Guide.