Read the mode before the keys
Head Soccer 2023 2D supplies separate keyboard instructions for single player and two player play. In single player, arrow keys move and Z and X hit the ball. The two player record gives Player 1 WASD movement with N and M for hitting. Do not carry the single player striking keys into another role merely because the same keyboard is being used throughout the session.
Make a shared keyboard agreement
Before a two player match, establish which side of the keyboard belongs to each person. The stored instructions begin Player 2's arrow key movement but cut off afterward, so they do not establish that player's complete action keys. Read the live instructions together instead of guessing the missing part. This short check avoids mistaking an unassigned key or the other player's input for a failed ball contact.
Watch the ball after a hit
Once your controls are clear, observe the result of one intentional hit: where was the ball relative to the player, and where did it travel? The objective is scoring with the head, but repeated striking without tracking the ball gives little information about timing. Use its visible approach to prepare your next action, then judge the contact you actually saw rather than assuming every press should produce a goal.
Sports
The single player and two player instructions assign different movement and striking keys, so identify your role first.