Step 1: 💧 Water and 💧 Water

Combine 💧 Water and 💧 Water to create 🌊 Lake

Step 2: 💧 Water and 🔥 Fire

Next, combine 💧 Water and 🔥 Fire to create 💨 Steam

Step 3: 🌱 Plant and 🌬️ Wind

Then, combine 🌱 Plant and 🌬️ Wind to create 🌼 Dandelion

Step 4: 💧 Water and 🌍 Earth

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

Step 5: 🌱 Plant and 💧 Water

And then, combine 🌱 Plant and 💧 Water to create 🐊 Swamp

Step 6: 🌱 Plant and 🌊 Lake

As next step, combine 🌱 Plant and 🌊 Lake to create 🌸 Lily

Step 7: 🌍 Earth and 🌍 Earth

Combine 🌍 Earth and 🌍 Earth to create 🏔️ Mountain

Step 8: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 9: 🌼 Dandelion and 🌼 Dandelion

Combine 🌼 Dandelion and 🌼 Dandelion to create 🌼 Dandelion Patch

Step 10: 🚗 Engine and 🌱 Plant

Combine 🚗 Engine and 🌱 Plant to create 🚗 Car

Step 11: 🌸 Lily and 🐊 Swamp

Combine 🌸 Lily and 🐊 Swamp to create 🌺 Lotus

Step 12: 🚗 Engine and 🏔️ Mountain

Combine 🚗 Engine and 🏔️ Mountain to create 🚂 Train

Step 13: 🚗 Car and 🌼 Dandelion Patch

Combine 🚗 Car and 🌼 Dandelion Patch to create 🚗 Yellow Car

Step 14: 🚂 Train and 🌺 Lotus

Combine 🚂 Train and 🌺 Lotus to create 🚅 Bullet Train

Step 15: 🚅 Bullet Train and 🚗 Yellow Car

Combine 🚅 Bullet Train and 🚗 Yellow Car to create 🚅 Yellow Bullet Train