Description:
/sjb main to go to the main hub, or /sjb platformer to enter the platformer lobby./sjb start <name> or pick one from the noticeboard (the back panel lists 10 recent global levels)./sjb buildkit to receive building tools, then /sjb save <name> <radius> when you're done.Spike Jump Builder transforms Minecraft into a fast-paced, side-scrolling, lane-locked platformer. You run forward automatically at a consistent starting velocity, dodge spike obstacles, ride slopes, collect checkpoints, and race to the finish. Levels can be shared globally, and a rich set of gamemodes — each with unique movement — keeps the gameplay varied. A boss bar at the top of the screen always tells you which mode you're in and what controls to use.
| Element | Description |
|---|---|
| Pointed Dripstone Spikes | Lethal on contact. Appear as single, double, or triple spikes on floors, ceilings, or floating in mid-air. They have no solid collision — touching them kills you rather than stopping you. |
| Quartz Stair Slopes | Ramp surfaces you ride to change vertical height smoothly. |
| Gold Checkpoints | Respawn you at that point if you die later in the level. |
| Emerald Finish | Large hitbox goal block — reach it to complete the level. |
Special trigger surfaces placed in levels switch your active gamemode. Each mode has distinct movement and controls, shown at all times in the boss bar.
| Mode | Colour | Space | Shift |
|---|---|---|---|
| Normal | Default | Jump | — |
| Flying | Pink | Rise/fly freely | — |
| Gravity Ball | Red | Climb upward | Drop downward |
| Spider | Purple / Magenta | Teleport up & flip gravity | Return to normal gravity |
| Submarine | Cyan | Rise | Dive |
A concise boss bar at the top of the screen always displays your current gamemode and its relevant controls. Consult it whenever you enter a new trigger zone.
Landing on a gold checkpoint sets your respawn point. When you die (from spikes or falling), you reappear at the last checkpoint you touched, or at the level start if none have been reached.
/sjb platformer — enters Platformer mode, which grants free movement and relaxed bounds./sjb mode <normal|flying|ball|spider|submarine>/sjb buildkit to receive a kit of building blocks and tools./sjb save <name> <radius> to save the level under a chosen name./sjb global so other players can find and play it.Useful build commands:
| Command | Effect |
|---|---|
/sjb buildkit | Gives you the builder item kit |
/sjb save <name> <radius> | Saves your level |
/sjb list | Lists your saved levels |
/sjb global | Submits/views global levels |
/sjb quit | Exits the current level or session |
| Command | Description |
|---|---|
/sjb main | Teleport to the main hub |
/sjb platformer | Enter platformer free-movement mode |
/sjb start <name> | Launch a specific level by name |
/sjb buildkit | Receive building tools |
/sjb save <name> <radius> | Save a built level |
/sjb list | List available levels |
/sjb global | Access the global level pool |
/sjb quit | Quit the current level |
/sjb mode <normal|flying|ball|spider|submarine> | Manually switch gamemode |
/lsc secret_level to access a hidden challenge level./secret_("_")_/ 1 to unlock a hidden extended course that cycles through every gamemode and introduces a special obstacle called The Crawler.When you first join, you appear near an in-world noticeboard. The back panel of the noticeboard displays 10 recent global levels arranged in two rows of five on outward-facing wall signs — walk around to the back to read them. The tour-guide NPC Wulzy stands nearby; right-clicking him walks you through the mod's features step by step.
/sjb platformer and using trigger surfaces lets you explore gamemode mechanics with free movement before committing to a scored run./sjb buildkit is one of the best ways to understand obstacle placement and trigger surface positioning.
``` Orbital Railgun Cataclysm ├── 🎯 Activation │ ├── ⏱️ 2s charge-up (green energy surge) │ └── 🚀 Launches full 20s orbital sequence │ ├── 🛰️ Phase 1: Target Scan │ ├── 🔄 Rotating white rings (r=30) │ ├── 🌐 Adaptive green laser grid │ └── 📡 Deep hum + radar tones │ ├── ☄️ Phase 2: Energy Formation │ ├── 🔆 Green/blue energy sphere forms │ ├── ⚡ Lightning arcs & halo rotation │ └── 🎶 Rising power sound buildup │ ├── 🌪️ Phase 3: Implosion │ ├── 🌀 Energy compression vortex │ ├── 💫 Space distortion effect │ └── 🔕 Short silence before impact │ ├── 💥 Phase 4: Detonation │ ├── 🌋 Expanding shockwave sphere │ ├── 🔮 Green fireball + mushroom cloud │ └── 📢 Massive explosion (audible range 400+) │ └── 🛠️ System Notes ├── 🧠 GPU particles + server validation ├── 🛡️ Safe tick-based spawning & pooling └── 🎧 Cinematic 25s audio + spatial effects ``` by 7klow for ModJam competition.
This mod is licensed under the CreativeMode Mods License.
