Plain game focuses on physics, which is core and very hard, and i find it addictive. The main goal is combining bits to make a giant melon.
Step and drag pieces with your mouse or finger, watching for precise timing.
Controls are drag and drop with your mouse or finger. The physics is wonky and can mess up plans, sending watermelons flying.
Most important tip from experience is to focus on combos then just random moves. Use props to fix mistakes.
Q: What are the controls? A: Drag and drop with mouse or finger.
Q: What is the objective? A: Combine bits to make a giant melon.
Q: Is there a timer? A: Not stated.
Q: What is the main mechanic? A: Combining bits.
Start dragging bits with precise timing to combine a giant melon, the physics are hard but I find it addictive, Bead Synthesis is a related game to try, use drag and drop controls and focus on combos instead of random moves.