Tutorial: Build a Complete Platformer Game Without Writing Code

"Make a 2D platformer. The player controls a small explorer character that can run left/right and jump. The jump should feel responsive, quick takeoff, brief hang time at the peak, and a slightly faster fall. Add a double-jump that activates when you press jump while airborne. The character should have a subtle trail effect when moving fast. Use a dark cave background with glowing crystals embedded in the walls. The platforms should look like rocky cave ledges."

"Adjust the movement: Make the character accelerate faster when starting to run (I want it to feel snappy, not floaty. Add coyote time (the player can still jump for 0.1 seconds after walking off a ledge). Make the double-jump slightly less powerful than the first jump) about 80% of the height. Add a small dust particle effect when landing."

"Create Level 1 as a tutorial cave. Layout: start with flat ground and a few low platforms to teach basic jumping. Then a gap that requires the double-jump to cross. Then a vertical section with platforms going up that teaches looking and jumping upward. Place glowing blue crystals throughout, 10 total. When the player collects all crystals, open a door at the end of the level. Show a crystal counter in the top-right corner. The level should take about 60-90 seconds for a first-time player."

"Create Level 2. This cave has hazards: stalactites that drip green acid at regular intervals, and floor sections that crumble 1 second after the player steps on them. The player has 3 hit points (shown as health crystals in the top-left). Getting hit by acid removes 1 HP and causes a brief invincibility flash. 15 crystals to collect. The level should feel noticeably harder than Level 1 but not unfair, every hazard should be avoidable with good timing."

"Create Level 3 with moving platforms over a bottomless pit. Some platforms move horizontally, some vertically, some in circular patterns. The timing should require the player to watch platform patterns before jumping. Add a new crystal color, rare red crystals worth 5 points each (regular blue = 1 point). 12 blue crystals and 3 red crystals. Falling into the pit respawns the player at the last safe platform they stood on."

"Add enemies to Level 2 and Level 3. Two enemy types: 1) Cave Crawlers, slow-moving creatures that patrol a platform back and forth. They damage the player on contact. The player can defeat them by jumping on top of them. 2) Cave Bats, flying enemies that move in a sine wave pattern. They're harder to avoid but also defeatable by jumping on them. Defeating enemies should feel satisfying, add a small explosion of particles and a crunchy sound effect. Each defeated enemy adds 3 points to the score."

"Adjust the enemies: Cave Crawlers should pause for 0.5 seconds when they reach the edge of a platform before turning around (this gives the player a window to jump on them. Cave Bats should have a small shadow on the ground so the player can track their position. Also add a brief camera shake when the player takes damage) very subtle, just enough to feel the hit."

"Add a power-up crystal (golden, glowing, slightly larger than regular crystals). It appears once per level in a hard-to-reach location. Collecting it gives the player a temporary shield that lasts 10 seconds, they're invincible and glow gold. Add a timer bar under the health display showing remaining shield time. The shield also lets the player break through cracked wall sections to find hidden areas with bonus crystals."

"Add Level 4, the Boss Level. The boss is a giant cave worm that emerges from the walls. Boss pattern: Phase 1, the worm pokes its head out of random wall holes and shoots rocks. The player must dodge rocks and jump on the head when it's exposed. 3 hits to advance. Phase 2, the worm chases through a horizontal tunnel. The player runs right while the worm destroys platforms behind them. Reach the end to trigger Phase 3. Phase 3, the worm is dazed. Jump on its head 3 more times while avoiding falling debris. The arena should be a large, open cave. After defeating the boss, the cave opens up and the player runs to a sunlit exit. Show a victory screen with total score, crystals collected, and time taken."

"Add ambient cave sounds (dripping water, distant echoes. Background music should be atmospheric and slightly tense, not upbeat. Different music for the boss fight) more intense, faster tempo. Add sound effects for: jumping, landing, collecting crystals, taking damage, defeating enemies, activating the shield, and opening the exit door. Each sound should be distinct and satisfying."

"Add a title screen with 'Crystal Caverns' as the game title, a 'Start Game' button, and a brief animation of crystals floating in a cave. Add a pause menu (press Escape) with Resume and Restart options. Add a game-over screen when the player loses all HP, with 'Try Again' and 'Quit to Menu' buttons. Between levels, show a brief results screen: crystals collected, enemies defeated, time taken, and a 'Next Level' button."