Hop On: Color Bus Puzzle
A line of passengers, a lot full of buses. Send the right bus to the stop before the bays fill up.
Pick a difficulty
Line · front on the left
Stop · 4 bays
Bus lot · tap a front bus
0/1000
Nice driving!
- Red-green levels cleared
- Blue-yellow levels cleared
Jams happen to everyone, and this is a puzzle, not a test. If the bus colors often looked the same to you, try the game with symbols on, and the free color blind test takes about three minutes.
How to play
- Choose easy (6 buses), medium (12 buses) or hard (20 buses).
- Look at the passenger at the front of the line, then tap the front bus of a lane to send it to the stop. Only the front bus of each lane can leave.
- Passengers board on their own whenever a bus of their color is waiting. A bus drives off when its 3 seats are full.
- The stop has 4 bays. If they are all taken and the front passenger has no bus, the level is jammed.
- Clear the line quickly for a time bonus. After 10 levels you get your score out of 1000.
Built for every kind of color vision
Like our other games, Hop On uses shades that are easy to mix up with color blindness. The colors come in groups of three that differ only in the signal of one cone type, the same idea our test plates are built on. With typical color vision the shades look clearly different. If that cone type is missing they look the same, and if it is weaker they look closer together.
That makes the plain game a good way to see where colors blur for you. If they do, turn onShow symbols: each color gets its own shape on the passengers and the buses, and the puzzle plays the same for everyone. You can switch symbols on or off at any time, and skip a level you can’t read.
It’s a game, not a test
A low score doesn’t mean you are color blind, and a high score doesn’t rule it out. Planning, speed and your screen all change the result. To screen your color vision, take the color blind test. For quicker games, try One Spot or Matcher.
Frequently asked questions
How do you play Hop On?
Passengers wait in a line and buses wait in a lot. Tap the front bus of a lane to send it to the stop. The passenger at the front of the line boards a waiting bus of their own color. A bus leaves when its 3 seats are full. Get everyone on board to clear the level.
What is a jam?
The stop has 4 bays. If all of them are taken and the passenger at the front of the line has no bus of their color to board, nothing can move and the level ends. Look at the next few passengers before you send a bus.
I can’t tell the colors apart. Can I still play?
Yes. Turn on “Show symbols” and every color gets its own shape on the passengers and the buses, so you can play by shape. You can also skip any level.
How is the score worked out?
Each level is worth up to 100 points: 60 shared between the passengers who get on a bus, plus up to 40 for the time left when you clear the level. A perfect game is 1000 points.
Why is Hop On hard with color blindness?
The bus and passenger colors come in groups of three shades. Inside a group the shades differ only in the signal of one cone type. If that cone type is missing, the three shades look the same, so it is hard to see which bus a passenger needs. If it is weaker, the shades look closer together. Eight levels use red-green differences and two use blue-yellow.
Can Hop On tell me if I’m color blind?
No. It is a puzzle game. Your screen, its brightness, the room lighting and how you plan your moves all change the score. If the shades often look the same to you, the free color blind test on this site is the better next step, and an eye care professional can give a diagnosis.