[In this weekly column, GameSetWatch rounds up the most popular paid and free iPad gaming applications on the App Store as of today, with X-Men, Where's Waldo in Hollywood and Back to the Future currently ranking among the platform's top downloads.]

Konami's arcade-ported beat-'em-up heads the iPad's paid chart in its debut week, overtaking longtime sales leaders Angry Birds HD, Angry Birds Rio HD, and Infinity Blade.

Ludia returns to the charts this week with a Where's Waldo? sequel, as Chillingo's newest game Feed Me Oil HD trails Cut the Rope HD and Words With Friends HD at tenth place.

This week's top paid titles are:

1. X-Men ($2.99)
2. Angry Birds HD ($4.99)
3. Angry Birds Rio HD ($2.99)
4. Infinity Blade ($2.99)
5. Angry Birds Seasons HD ($1.99)
6. Fruit Ninja HD ($2.99)
7. Where's Waldo HD In Hollywood ($0.99)
8. Cut the Rope HD ($1.99)
9. Words With Friends HD ($2.99)
10. Feed Me Oil HD ($1.99)

Here are this week's top free iPad applications:

1. Strike Knight HD
2. Mr Giggle HD Lite
3. Funky Fingers
4. Angry Birds HD Free
5. Crayola ColorStudio HD
6. Back to the Future Episode 1 HD
7. Call of Atlantis HD
8. TowerMadness HD
9. Angry Birds Rio HD Free
10. Words With Friends HD Free

Backflip Studios' bowling sim Strike Knight HD ranks as the iPad's most popular download after recently becoming free-to-play, beating recent favorites like Mr Giggle HD and Funky Fingers.

Telltale Games also finds chart success by giving away the first episode of its Back to the Future adventure game series, while former chart leader TowerMadness HD sees a drop in popularity, landing behind Call of Atlantis HD at eighth place in today's results.