One of the PlayStation Plus free games for the month of May has recently entered the Instant Game Collection.

Skullgirls Encore is the latest PlayStation Plus free game to arrive at the US/CA Instant Game Collection this week. One of the PlayStation Plus free games announced for May, Skullgirls Encore was set to replace Bioshock Infinite.

SkullGirls Encore offers the game's roster of 8 combatants. Two free DLC characters are also made available. The description for SkullGirls Encore, as well as some of the unique characters of the indie-darling fighter game is posted on US PlayStation Blog:

"This fighter's roster is comprised of mainly females (hence, "Skullgirls" and not "Skullpeople") and includes really oddball personalities. There's Cerebella, an orphaned circus performer who happens to have a kick-ass living hat with massive arms, the feline-esque Ms. Fortune who cannot die since she swallowed a Life Gem (making dismemberment part of her playstyle), and Double, an amorphous character that can transform into anything, but usually hangs out in as a nun."

Moreover, Skullgirls Encore "has a fantastic art style, and the Encore version includes gameplay updates, balance changes and new stages and music."

Watch the launch trailer for Skullgirls Encore below, one of this month's PlayStation Plus free games:

<iframe width="600" height="338" src="//www.youtube.com/embed/tYS8bZa0ePI" frameborder="0" allowfullscreen></iframe>

In addition to PlayStation Plus free games, members can also take advantage of the games that are currently on-sale this week. Check out the list below, grabbed from PlayStation Lifestyle website:

Hitman: Absolution Special Edition - $8.99, $19.99

Hitman Trilogy HD - $14.39, $39.99

Serious Sam 3: BFE - $14.99, $19.99

Tomb Raider (PS3) - $13.49, $29.99

Meanwhile, below are some of the free-to-play sales available this week:

Blacklight Retribution: 2,500 Zcoins (Premium Currency) - $12.24, $24.99

Blacklight Retribution: 5,000 Zcoins (Premium Currency) - $24.49, $49.99

Blacklight Retribution: 500 Zcoins (Premium Currency) - $2.44, $4.99

Dead Or Alive 5 Ultimate - Complete Casual Collection Vol. 1 - $2.75, $10.99

Dead Or Alive 5 Ultimate - Complete Doa5 Costume Set - $10.00, $39.99

Dead Or Alive 5 Ultimate - Ultimate Sexy Costumes - $3.75, $14.99

DC Universe Online Ultimate Edition - $14.69, $29.99

DC Universe Online: Lightning Strikes (2) - $4.89, $9.99

See the entire list of the discounted titles for this week by visiting this post.