Step 1: 💧 Water and 🔥 Fire

Combine 💧 Water and 🔥 Fire to create 💨 Steam

Step 2: 💧 Water and 🌍 Earth

Next, combine 💧 Water and 🌍 Earth to create 🌱 Plant

Step 3: 💧 Water and 💧 Water

Then, combine 💧 Water and 💧 Water to create 🌊 Lake

Step 4: 🌱 Plant and 💧 Water

Now, combine 🌱 Plant and 💧 Water to create 🐊 Swamp

Step 5: 🌱 Plant and 🌊 Lake

And then, combine 🌱 Plant and 🌊 Lake to create 🌸 Lily

Step 6: 🌍 Earth and 🌍 Earth

As next step, combine 🌍 Earth and 🌍 Earth to create 🏔️ Mountain

Step 7: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 8: 🐊 Swamp and 🌱 Plant

Combine 🐊 Swamp and 🌱 Plant to create 🪲 Venus Flytrap

Step 9: 🚗 Engine and 🌊 Lake

Combine 🚗 Engine and 🌊 Lake to create 🚤 Boat

Step 10: 🌸 Lily and 🐊 Swamp

Combine 🌸 Lily and 🐊 Swamp to create 🌺 Lotus

Step 11: 🚗 Engine and 🏔️ Mountain

Combine 🚗 Engine and 🏔️ Mountain to create 🚂 Train

Step 12: 🚤 Boat and 🪲 Venus Flytrap

Combine 🚤 Boat and 🪲 Venus Flytrap to create 🌵 Piranha Plant

Step 13: 🚂 Train and 🌺 Lotus

Combine 🚂 Train and 🌺 Lotus to create 🚅 Bullet Train

Step 14: 🚅 Bullet Train and 🌵 Piranha Plant

Combine 🚅 Bullet Train and 🌵 Piranha Plant to create 💣 Bullet Bill