Combine the softened cream cheese and shredded cheddar in a mixing bowl, stirring until smooth and well blended.
Fold the finely chopped jalapenos into the cheese mixture, evenly distributing the spicy bits throughout.
Use a small cookie scoop or spoon to portion out the mixture, then roll each into a tight ball between your palms, creating uniform mini cheese spheres.
Wrap each cheese ball with a half slice of bacon, stretching gently if needed to cover the entire surface, and secure with a toothpick if necessary.
Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper and arrange the bacon-wrapped cheese balls on it, spacing them evenly.
Bake in the oven for about 15 minutes, or until the bacon is crispy and golden brown, and the cheese inside is starting to melt.
Remove from oven and let cool slightly — the cheese will be hot and gooey. Optionally, sprinkle with breadcrumbs for extra crunch.
Serve the spicy cheese balls warm, letting each bite deliver crispy bacon, melty cheese, and fiery jalapeno flavor.