Too many to list, many people say muntjack is the 'sweetest' tasting venison so i've marinaded a fair few in a sweet Chinese / Japanese style marinade to make it even sweeter.
Crushed garlic, fresh ginger, dried spice (5 spice is fine but experiment to your own tastes), hoy sin, soy sauce, brown sugar, honey, rice wine or saki, black pepper & cayenne to your taste, heat, let boil for 1 minute, cool then marinade for several days. sesame oil can be a nice edition but i know a few people that don't like it i suppose and of the former ingredients can be removed at will.
Gristly shanks etc, i cook them whole in big stew batches so that their flavour leaches into the stew and the bones thicken the broth, take them out as soon as the stew is out the oven, let the cool, remove the tight meat and chop it up into tiny chunks 2-8mm in size, mix in liberal amount of english mustard and a dash of soy and marinade for a few minutes, fry in a hot pan so it comes out crispy, coll and fry twice if you want it super crispy.
This twice cook method for tight grisly cuts also works well as a modified classic crispy chilli beef: mix mini chunks (on long thin strips) with at egg/s then coat in seasoned corn flour and deep fry & drain. Place ginger, coriander stalk or root, fresh chilli (no seeds) & garlic chopped or blended super fine, in a super hot pan / wok then add Vinegar honey, soy, ketchup mix, once boiled add meat and toss, serve. The usually taxing gristle & silvering becomes a crispy delight
dry rub recipie: salt, black pepper, paprika, chilli powder, ground cumin, ground coriander, garlic powder, turmeric, cardamon, fennel seeds ground ginger & mustard powder, quantities of each are up to you but go easy on the turmeric, cardamom, coriander, fennel, ground ginger and mustard powder