Rock-paper-scissors Goalkeeper

The differences by difficulty level are as follows:

[Easy] Designed for beginners or users who require a gentler introduction to the training. The goal post size is small, allowing players to focus on learning the gameplay mechanics and improving hand-eye coordination at a comfortable pace.

[Normal] Provides the standard gameplay experience with a regular-sized goal post. This difficulty offers a balanced level of challenge suitable for most users while continuing to strengthen cognitive processing and reaction skills.

[Hard] Intended for experienced users seeking a greater challenge. The goal post size is large, requiring faster decision-making, more accurate hand tracking, and improved cognitive response to successfully defend the goal.