1984 Acorn Electron - Acornsoft Hopper

Acornsoft cassette for the Acorn Electron in used but usable condition
 
The objective of the game is hop the frog across the motorway dodging the cars and lorries. To cross the river use floating logs and turtles' backs as hopping stones, leaping from one to the other before finally hopping into one of the five froggy lairs.
Some turtles occasionally submerge; these must be avoided. Later in the game you may come across a crocodile, a snake and a dragonfly.
Your attempts to cross the river and road are timed, and you have to hurry if you are to complete the course at all! The timer displayed in the corner of the screen counts down from 400. If it reaches 0, you lose your frog.
When five frogs are safely in their lairs you have 'cleared a sheet' and can start on another one. Later sheets include the crocodile and the snake.