What kind of game is Blob Drop?
A pair of colored jelly blobs falls down the board, and you move and rotate it so that four or more blobs of one color end up touching sideways or up and down. The moment four connect they pop and vanish, and the blobs above settle into the gap. If the settled blobs form another four you get a 2 chain, then a 3 chain, and the score multiplies at every step. It plays like the classic arcade chain puzzles where you match colors to build combos.
The board is a bright sky blue glass pane six cells wide and twelve tall, and every pair enters at the top of the third column from the left. When that cell gets buried the game ends. Blobs come in red, green, blue and yellow, and in solo play purple joins from level 8 for five colors. The box next to the board shows the next two pairs, and a faint dotted outline on the board marks where the current pair will land.
How do rotation and hard drop work?
The up arrow or X turns the second blob clockwise around the first one cell at a time, and Z turns it the other way. If a wall or another blob is in the way, the pair shifts one cell sideways or lifts one cell up so it can still turn, and in a narrow gap blocked on both sides it flips top to bottom.
Holding the down arrow makes the pair fall fast and lock as soon as it touches down. Space sends it straight to its landing spot. After touching down you still have half a second to move or rotate, so a last moment change is possible. If one blob of a horizontal pair has nothing under it, that blob falls on its own.
How are chain scores calculated?
Every popped blob is worth 10 points, multiplied by a bonus that grows with each chain step. The first pop counts once, a 2 chain eight times, a 3 chain sixteen times and a 4 chain thirty two times, with extra bonus for popping two colors at once or a group of five or more.
| Situation | Points |
|---|---|
| Four blobs popped once | 4 × 10 × 1 = 40 |
| Four blobs in a 2 chain | 4 × 10 × 8 = 320 |
| Four blobs in a 3 chain | 4 × 10 × 16 = 640 |
| Four blobs in a 4 chain | 4 × 10 × 32 = 1,280 |
| 5 chain and beyond | 64, 96, 128 and so on, growing by 32 each step |
| Two colors popped together | Adds 3 to the multiplier (6 for three colors) |
| Group of five or more | Adds 2 to 10 depending on size |
Chain length matters far more than popping a lot at once. Twelve blobs of one color popped as one group give just over 1,000 points, while four groups of four popped one after another in a 4 chain give 2,280.
How do nuisance blobs work against the CPU?
Every 70 points scored in a chain sends one gray nuisance blob to the other board, and they rain down the moment the opponent's next pair locks. Nuisance blobs have no color, so they never pop on their own; they vanish when a colored group right next to them pops.
The gray blobs shown above a board are what is about to fall. A small blob means 1, a medium one 6 (a full row) and a large one 30 (five rows). If you pop a chain while nuisance is still pending on your side, the two amounts cancel out and only the difference falls. At most 30 nuisance blobs fall at once; the rest follow when the next pair locks. The CPU has three levels.
| Level | How the CPU plays |
|---|---|
| Easy | Only groups same colors and pops as soon as four meet. Slow hands |
| Normal | Waits for a 2 chain, but pops right away when the board gets tall or nuisance is coming |
| Hard | Keeps building a chain that one more blob would trigger, looks ahead to the next pair and fires at 3 chains or more |
How does two player mode work?
Pick Two players and two boards appear side by side: the left board uses A D W Q S Space and the right board uses the arrow keys, the period key and Enter. Both boards receive exactly the same sequence of pairs, so only skill decides the match.
- Left (P1): A D move, W rotate, Q rotate back, S soft drop, Space hard drop.
- Right (P2): ← → move, ↑ rotate, period (.) or right Shift rotate back, ↓ soft drop, Enter hard drop.
- Tablet: the left half of the screen controls the left board and the right half the right board. Two people can touch at the same time.
How does solo play speed up?
Every 10 pairs placed raises the level by one, and each level makes the pair fall 14% faster. At level 1 a cell takes about 1.2 seconds, at level 10 about 0.36 seconds, and by level 20 the pair all but drops.
From level 8 purple blobs join for five colors. One more color makes matching harder, so it pays to have a chain foundation ready before then. Your best score is saved in this browser and shown on the title screen and above the board.
Any tips for building chains?
- Do not add the fourth blob right away. Keep three of a color together and park the fourth one cell beside or above instead of directly on top, so it drops into place when another color pops underneath.
- Build stairs. A staircase that is high on the left and low on the right lets blobs fall one cell at a time as the bottom pops, linking one group after another.
- Stand same color pairs upright. A pair with two blobs of one color placed vertically puts both in one column, so the next two make four at once.
- Keep the third column low. The game ends when the entry column is buried even if other columns are empty. Keep it the lowest column on the board.
- Save small pops in versus. A single group of four sends almost no nuisance. Gather a 2 chain or more and send it all at once to bury the opponent.
Controls
- Phone and tablet: swipe the pair sideways to move it one cell at a time, tap the right side of the board to rotate and the left side to rotate back. A quick flick down hard drops, and dragging down slowly soft drops.
- Keyboard: ← → or A D move, ↑ X W rotate, Z Q rotate back, ↓ S soft drop, Space hard drop, P or Esc pause.
- Buttons: 🔊 at the top right toggles sound, ⏸ pauses and ⌂ returns to the title screen.
Best scores and CPU match records are stored only in this browser and never sent to a server. The game pauses by itself when you switch tabs.