If they've got the right attitude, you could just sit them down and go through the alphabet in SATPIN order game-free. Just a few letters a session, then straight on to reading three letter CVC words. Or four-five letter words as long as they're monosyllabic. Once you've gotten through the alphabet, continue on with digraphs, and split digraphs, again, having the children read words you show them, and write words you sound out for them. Review and review and review as if you're a human SRS machine. Games aren't particularly necessary for this stuff as learning any script has a high returns to investment ratio, so hopefully the act of seeing themselves progress rapidly will be enough to keep them interested.

However, if you must game it up, just make races out of things. Give them cards and have them race to arrange them. Do reading races, flyswatters on the board, the two pens or four corners game, whathaveyou.

For minimal pairs, particularly involving final consonants that sound the same in Korean, I had some fantastic luck with this sounds tree activity I literally stumbled upon in a Google image search one day. You pair them up, sit them back to back and one traces a path down their tree then reads it out, word by word, whilst the other listens and traces on theirs. Then they check whether they landed at the same place. They'll insist its too easy, and then fail the first time because they've been thinking in terms of hangul. Next time they'll start to really focus on vowel length (hit vs heat) and returning their mouth to an slightly open position (cap vs cab) and start succeeding. In small groups, it can be a real eye opener for them (in large groups, volume control becomes an issue).

Energy levels in the class can be managed through storytime. Not funfunsingsinghappypowerpoint storytime but actual storytime. Like, sitting the kids around you in a circle (chairs for fifth graders I guess) with a physical book, pausing to let students "help" read words comprised of sounds they've covered.

If you want to give the kids some sort of take home material, perhaps print a blank phonemic chart? They can then fill it in as they go, not with IPA but with the graphemes that commonly represent each sound -- as they learn them -- working towards something like this.

We have a game in our class called "Letterflip."
It's like "Guess Who" but for words. http://www.amazon.com/Out-of-the-Box-2626/dp/B0006GD9HE
Maybe your school could buy it or you could make something like it with easy phonics words. Like make an alphabet grid and use tokens to cover the letters that the other player doesnt have.

Once they have a bit of a handle on phonics you can use Jenga for small classes.

Put stickers on the ends of each block (the small side that faces out - not the faces that slide together) with a letter and make them spell words.  If the first kid pulls P, the next kid pulls E, the third kid pulls T etc etc.  The kid who finishes the word also has to say what it is.  Make sure you have plenty of vowels.

You can add/change letters as you go through the alphabet.  You can increase the number of letters present by having a different letters on each side of the block (one block can represent e or z - when they stack it on top the word should be readable).  Once you start covering silent e or vowel combinations you can tell them that 3 letter words aren't allowed or award more points for spelling longer words.

Probably good to tell them they can't spell the same word every time, but the nature of Jenga should also help prevent that.

Sorry for posting on an old topic but I'm an experienced teacher and I thought I'd have something valuable to add to this debate...

Older children genuinely struggle with phonics because, once their reading gets to a comfortable level, their awareness of phonics techniques drifts. It's a lot like muscle memory with martial arts or using a pen - they forget what they're doing because it becomes second nature.

If you want to see this in action, try performing a Year 1 phonics test on them (this is the UK test for children aged 5-6). You will probably be as confused as they are with some of the letter combinations - especially the alien/fake/pseudo words they throw in to keep us all guessing!

Anyway, the past phonics tests can be found here:

https://www.sats-papers.co.uk