The game feature both single-player and multiplayergame modes. Practice mode allows one player to pass the ball around the pitch without there being any opposition players on the field. Exhibition mode allows one or two players to compete in a single "friendly" match. The other mode is Tournament. There is also a demo mode so players can watch a match being played. The menu screen allows a player to choose from a selection of referees, although there is no noticeable difference between them.
Tournament mode
As this game was the Sega Master System's only official game of Euro 92 it allowed either one or two players to progress through the tournament from the group stages to the final. As with the actual tournament there are two groups of four teams in the first stage, moving on to two semi-finals and culminating in the final. The player can choose to play as any country in Europe, which is selected from a map screen. If there are two human players entered, player two will plays as the opponent for all of player one's matches through the competition.
Gameplay
Visuals
The match is viewed from a 75° angle, and there is the option of where to place the pitch radar if the player wishes to have it on the screen at all. Each team has correct kit colours for their respective country, however these are always plain shirts.
Controls
The Sega Master System control pad has two action buttons. In Champions of Europe one button is used for passing/tackling and the other button for shooting. While not in possession of the ball a button can be pressed to generate a "speed-burst". The directional pad allows for player movement and for applying "aftertouch" to a shot or pass. There is the ability to change the formation while in possession of the ball, but this is considered impractical during gameplay
Sound
On the introduction animation there is an uptempo soundtrack. There are a few in-game sound effects, those being for the ball being kicked or bouncing and the referee's whistle. An additional feature is that the players and referee often display speech bubbles with brief wording to represent what is being said between players.
Glitches
There is a glitch that gives the player points for scoring in their own net.
Another glitch occurs when quitting a game with a 0-0 scoreline at the semi-final stage of the tournament. This automatically propels the player into the final.