Saitama charges up his "Serious Punch - The One-Hit Obliterator" while Doraemon uses his "Dimensional Pocket- The Infinite Arsenal". The two clash, creating a massive shockwave that devastates the entire arena. Saitama follows up with "Consecutive Normal Punches - The Thousand-Fist Barrage" but Doraemon dodges by using his "Time Cloth - The Time-Space Manipulator".
Saitama then unleashes his "Serious Series: Serious Table Flip" but Doraemon counters with his "Take-Copter - The Flying Contraption" and escapes the attack. The two continue to exchange blows with Saitama using his "Serious Series: Serious Headbutt" and Doraemon retaliating with "Bamboo-Copter - The Instant Bamboo Fortress".
In a final desperate move, Saitama charges up his ultimate attack, "Serious Series: Serious Punch - The Big Bang Punch" while Doraemon prepares his own "Anywhere Door - The Portal to Everywhere". The two attacks collide, resulting in a cataclysmic explosion that destroys everything in the vicinity.
As the dust settles, Saitama stands victorious but barely able to stand. The winner of the battle is Saitama, the One-Punch Man!