Painting a bedroom or a game room like a hockey rink is a straightforward process that doesn't require a lot of skill or fancy equipment. The most complicated part is preparing the walls so they resemble the sides of a rink. An impressionist approach might simply use the colours common to ice hockey rinks, but a strict interpretation calls for some knowledge of how a professional rink looks. Adding personal touches to the decor when you're finished removes any doubt about what the room represents.
Install a chair rail around the room to create the impression of what is known as the boards of the hockey rink. Use a chalk line to mark a straight line on the wall 40" from the floor. Cut chair rail moulding the appropriate lengths, mitring the corners. Attach the moulding to the wall with 6d finish nails, caulk the seams and paint the chair moulding white.
Paint the walls beneath the chair rail white, and the baseboards yellow. Paint 3" wide vertical black stripes from the base of the chair moulding to the baseboards 10 feet apart around the room. Use painter's tape to mark the edges of the stripes, paint inside the tape and then, after the paint dries, remove the tape carefully.
Use a dark grey or black paint on the walls above the chair rail. If you're creative, add a few spectators by portraying them from the waist up on the wall above the chair rail or glue cut-outs of spectators to the walls. Otherwise, leave the walls the solid colour.
Prepare the floor for painting by removing the carpet and cleaning the subfloor thoroughly. Paint the floor white.
Plan your floor striping to be proportional to the size of the room, since most rooms aren't the size of regulation hockey rinks. Hockey rinks have goal lines at each end, a centre line and one blue line at each side of the centre line. They also have two circles at each end and a circle at the centre of the centre line where players face off.
Use painter's tape to mark off 2" lines and the circles on the floor. Continue the stripes up the wall to the chair rail. If the room is small, don't do the circles. They'd make the room too busy. Paint the lines on the floor and up the walls. The centre line, the circles and the two goal lines are red. The blue lines are blue. Remove the tape after the paint has dried.
Track lighting or can lights focused on the walls adds to the indoor hockey rink atmosphere. Put a bench along one wall to represent the player's bench. Decorate the room in your favourite team's colours, and hang hockey memorabilia on the walls.